Finding the Fourth Proportional to 2,100.32, 3,151.20 and 802.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,100.32 : 3,151.20 = 802.16 : x
2. Step 2: Convert to fraction form
   2,100.32/3,151.20 = 802.16/x
3. Step 3: Cross multiply
   2,100.32x = 3,151.20 × 802.16
4. Step 4: Simplify right side
   2,100.32x = 2,527,766.59
5. Step 5: Solve for x
   x = 2,527,766.59/2,100.32
6. Step 6: Final answer
   x = 1,203.51