yer data dont fit NE reesunabel kerv
So me thank best bet be tu yuze strate-line interrate tween points 3 & 4
x=3...y=1816, x=4, y=8888, deltax=1, deltay=7072, slope=7072
1919-1816=103
103/7072=0.014564479, so x=3.0145645
Yu mite tri tu fit quadratik tu 3 points
Nuthun will be kloes kauz av the big chaenj in slope tween points 3 & 4