You use a PS4 for spreadsheets? You can run Exel (or something similar) on there?
PS4 is only good for 1080p anyway, unless you mean for video or something? Even the Professional version is only between Ellesmere PRO and XT, so it def. ain't doing real 4K gaming.
Why would you need a PC to "run this"? It's a monitor, it has HDMI. Any device PC or CE or phone/tablet even, that has HDMI output and 1080p support will be able to use this monitor.