First lets make these numbers more simple...
9.1 x 10^2 = 910
918% = 918 (reason being percents are out of 100, so 100 = 100%, therefore 918% = 918) (this was wrong, its actually 918 / 100 = 9.18 by conversion of percent to decimal)
1830 / 2 = 915
920.0 = 920
Your arrangement: 920 , 918 , 915 , 910
Another way is: 920.0, 918% , 1830 / 2, 9.1x102
(answer is actually 920.0, 1830 / 2, 9.1 x 10^2, 918%)