Finding the Fourth Proportional to 1,162.50, 1,744.42 and 432.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.50 : 1,744.42 = 432.58 : x
2. Step 2: Convert to fraction form
   1,162.50/1,744.42 = 432.58/x
3. Step 3: Cross multiply
   1,162.50x = 1,744.42 × 432.58
4. Step 4: Simplify right side
   1,162.50x = 754,601.20
5. Step 5: Solve for x
   x = 754,601.20/1,162.50
6. Step 6: Final answer
   x = 649.12