Finding the Fourth Proportional to 1,100.72, 1,518.99 and 658.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.72 : 1,518.99 = 658.46 : x
2. Step 2: Convert to fraction form
   1,100.72/1,518.99 = 658.46/x
3. Step 3: Cross multiply
   1,100.72x = 1,518.99 × 658.46
4. Step 4: Simplify right side
   1,100.72x = 1,000,194.16
5. Step 5: Solve for x
   x = 1,000,194.16/1,100.72
6. Step 6: Final answer
   x = 908.67