Finding the Fourth Proportional to 1,047.57, 1,445.04 and 653.91

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.57 : 1,445.04 = 653.91 : x
2. Step 2: Convert to fraction form
   1,047.57/1,445.04 = 653.91/x
3. Step 3: Cross multiply
   1,047.57x = 1,445.04 × 653.91
4. Step 4: Simplify right side
   1,047.57x = 944,920.69
5. Step 5: Solve for x
   x = 944,920.69/1,047.57
6. Step 6: Final answer
   x = 902.02