It might run the game, but with a GT 710 it won't be much fun. The rest should be able to run the game fine, but I still recommend looking into what hardware is there actually. (There is a difference between a i5-750 and a i5-7600K, there is a difference between DDR3-1333 and DDR3-1866)
The requirements for the game according to the developer/publisher are as follows:
https://www.epicgames.com/help/th/f...requirements-for-fortnite-on-pc-and-mac-a3332
Minimum:
Video Card: Intel HD 4000 on PC or Intel Iris Pro 5200 or equivalent AMD GPU on Mac
Processor: Core i3-3225 3.3 GHz
Memory: 4 GB RAM
OS: Windows 7/8/10 64-bit
Recommended:
Video Card: NVIDIA GeForce GTX 660 or AMD Radeon HD 7870 or equivalent DX11 GPU
Video Memory: 2 GB VRAM
Processor: Core i5-7300U 3.5 GHz
Memory: 8 GB RAM
OS: Windows 7/8/10 64-bit
The GT710 is about as powerful as the HD4000, maybe a little bit stronger, but both are a far cry away from gaming in 2020
(A quick search even came up with some people testing it. It was just the first video to come up)
1080p: about 25 fps
720p: about 40 fps
540p: about 50 fps
480p: about 58 fps
360p: about 80 fps
As comparison, even something like a GT 1030 (which is cheap) would give way better results at the same settings, even with an aged i5:
1080p: about 70 fps
900p: about 85-90 fps
720p: about 105-120 fps
TL;DR: get a better card if you want to go with that build, but please give better information on what i5, RAM and especially PSU would be in it. (sounds massively like a used prebuild, which is not a bad thing to start with)