Finding the Fourth Proportional to 1,155.50, 1,594.62 and 658.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,155.50 : 1,594.62 = 658.12 : x
2. Step 2: Convert to fraction form
   1,155.50/1,594.62 = 658.12/x
3. Step 3: Cross multiply
   1,155.50x = 1,594.62 × 658.12
4. Step 4: Simplify right side
   1,155.50x = 1,049,451.31
5. Step 5: Solve for x
   x = 1,049,451.31/1,155.50
6. Step 6: Final answer
   x = 908.22