Finding the Fourth Proportional to 1,155.72, 1,594.70 and 658.26

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.72 : 1,594.70 = 658.26 : x
2. Step 2: Convert to fraction form
   1,155.72/1,594.70 = 658.26/x
3. Step 3: Cross multiply
   1,155.72x = 1,594.70 × 658.26
4. Step 4: Simplify right side
   1,155.72x = 1,049,724.55
5. Step 5: Solve for x
   x = 1,049,724.55/1,155.72
6. Step 6: Final answer
   x = 908.29