Finding the Fourth Proportional to 1,182.42, 1,631.61 and 658.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.42 : 1,631.61 = 658.42 : x
2. Step 2: Convert to fraction form
   1,182.42/1,631.61 = 658.42/x
3. Step 3: Cross multiply
   1,182.42x = 1,631.61 × 658.42
4. Step 4: Simplify right side
   1,182.42x = 1,074,280.58
5. Step 5: Solve for x
   x = 1,074,280.58/1,182.42
6. Step 6: Final answer
   x = 908.54