Finding the Fourth Proportional to 1,182.68, 1,632.12 and 658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,182.68 : 1,632.12 = 658.72 : x
2. Step 2: Convert to fraction form
   1,182.68/1,632.12 = 658.72/x
3. Step 3: Cross multiply
   1,182.68x = 1,632.12 × 658.72
4. Step 4: Simplify right side
   1,182.68x = 1,075,110.09
5. Step 5: Solve for x
   x = 1,075,110.09/1,182.68
6. Step 6: Final answer
   x = 909.05