Finding the Fourth Proportional to 1,100.72, 1,519.02 and 658.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.72 : 1,519.02 = 658.94 : x
2. Step 2: Convert to fraction form
   1,100.72/1,519.02 = 658.94/x
3. Step 3: Cross multiply
   1,100.72x = 1,519.02 × 658.94
4. Step 4: Simplify right side
   1,100.72x = 1,000,935.44
5. Step 5: Solve for x
   x = 1,000,935.44/1,100.72
6. Step 6: Final answer
   x = 909.34