Hi, I'm having a really hard time understanding why when subtracting a number with 4 sig figs and one with 3 both with the last sig fig before the decimal, the result has 4 sig figs. Shouldn't it be 3? Thank you.

9. [( 285.2*105.02) -(1,200*103)]*4.8293 = (29 9 51.704 - 123.6) 4.8293 29828,104 x 4.8293 = 144048.8626 = 1.440 x 10 5 410 2448.704 123. 6 29828. 104