Finding the Fourth Proportional to 1,025.20, 1,414.32 and 693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.20 : 1,414.32 = 693.50 : x
2. Step 2: Convert to fraction form
   1,025.20/1,414.32 = 693.50/x
3. Step 3: Cross multiply
   1,025.20x = 1,414.32 × 693.50
4. Step 4: Simplify right side
   1,025.20x = 980,830.92
5. Step 5: Solve for x
   x = 980,830.92/1,025.20
6. Step 6: Final answer
   x = 956.73