Finding the Fourth Proportional to 1,162.48, 1,604.31 and 658.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,162.48 : 1,604.31 = 658.16 : x
2. Step 2: Convert to fraction form
   1,162.48/1,604.31 = 658.16/x
3. Step 3: Cross multiply
   1,162.48x = 1,604.31 × 658.16
4. Step 4: Simplify right side
   1,162.48x = 1,055,892.67
5. Step 5: Solve for x
   x = 1,055,892.67/1,162.48
6. Step 6: Final answer
   x = 908.31