Finding the Fourth Proportional to 1,154.52, 1,592.73 and 688.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,154.52 : 1,592.73 = 688.50 : x
2. Step 2: Convert to fraction form
   1,154.52/1,592.73 = 688.50/x
3. Step 3: Cross multiply
   1,154.52x = 1,592.73 × 688.50
4. Step 4: Simplify right side
   1,154.52x = 1,096,594.61
5. Step 5: Solve for x
   x = 1,096,594.61/1,154.52
6. Step 6: Final answer
   x = 949.83