Finding the Fourth Proportional to 1,132.29, 1,562.85 and 690.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,132.29 : 1,562.85 = 690.50 : x
2. Step 2: Convert to fraction form
   1,132.29/1,562.85 = 690.50/x
3. Step 3: Cross multiply
   1,132.29x = 1,562.85 × 690.50
4. Step 4: Simplify right side
   1,132.29x = 1,079,151.83
5. Step 5: Solve for x
   x = 1,079,151.83/1,132.29
6. Step 6: Final answer
   x = 953.07