Finding the Fourth Proportional to 1,182.87, 1,632.42 and 658.89

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.87 : 1,632.42 = 658.89 : x
2. Step 2: Convert to fraction form
   1,182.87/1,632.42 = 658.89/x
3. Step 3: Cross multiply
   1,182.87x = 1,632.42 × 658.89
4. Step 4: Simplify right side
   1,182.87x = 1,075,585.21
5. Step 5: Solve for x
   x = 1,075,585.21/1,182.87
6. Step 6: Final answer
   x = 909.30