Finding the Fourth Proportional to 1,153.80, 1,592.52 and 656.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,153.80 : 1,592.52 = 656.72 : x
2. Step 2: Convert to fraction form
   1,153.80/1,592.52 = 656.72/x
3. Step 3: Cross multiply
   1,153.80x = 1,592.52 × 656.72
4. Step 4: Simplify right side
   1,153.80x = 1,045,839.73
5. Step 5: Solve for x
   x = 1,045,839.73/1,153.80
6. Step 6: Final answer
   x = 906.43