Finding the Fourth Proportional to 1,084.22, 1,496.23 and 658.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,084.22 : 1,496.23 = 658.72 : x
2. Step 2: Convert to fraction form
   1,084.22/1,496.23 = 658.72/x
3. Step 3: Cross multiply
   1,084.22x = 1,496.23 × 658.72
4. Step 4: Simplify right side
   1,084.22x = 985,596.63
5. Step 5: Solve for x
   x = 985,596.63/1,084.22
6. Step 6: Final answer
   x = 909.04