Finding the Fourth Proportional to 1,100.67, 1,519.11 and 658.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.67 : 1,519.11 = 658.86 : x
2. Step 2: Convert to fraction form
   1,100.67/1,519.11 = 658.86/x
3. Step 3: Cross multiply
   1,100.67x = 1,519.11 × 658.86
4. Step 4: Simplify right side
   1,100.67x = 1,000,880.81
5. Step 5: Solve for x
   x = 1,000,880.81/1,100.67
6. Step 6: Final answer
   x = 909.34