Finding the Fourth Proportional to 1,355.13, 2,032.29 and 738.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,355.13 : 2,032.29 = 738.72 : x
2. Step 2: Convert to fraction form
   1,355.13/2,032.29 = 738.72/x
3. Step 3: Cross multiply
   1,355.13x = 2,032.29 × 738.72
4. Step 4: Simplify right side
   1,355.13x = 1,501,293.27
5. Step 5: Solve for x
   x = 1,501,293.27/1,355.13
6. Step 6: Final answer
   x = 1,107.86