Finding the Fourth Proportional to 1,132.72, 1,699.32 and 402.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.72 : 1,699.32 = 402.52 : x
2. Step 2: Convert to fraction form
   1,132.72/1,699.32 = 402.52/x
3. Step 3: Cross multiply
   1,132.72x = 1,699.32 × 402.52
4. Step 4: Simplify right side
   1,132.72x = 684,010.29
5. Step 5: Solve for x
   x = 684,010.29/1,132.72
6. Step 6: Final answer
   x = 603.87