Finding the Fourth Proportional to 2,606.52, 3,909.72 and 757.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.52 : 3,909.72 = 757.56 : x
2. Step 2: Convert to fraction form
   2,606.52/3,909.72 = 757.56/x
3. Step 3: Cross multiply
   2,606.52x = 3,909.72 × 757.56
4. Step 4: Simplify right side
   2,606.52x = 2,961,847.48
5. Step 5: Solve for x
   x = 2,961,847.48/2,606.52
6. Step 6: Final answer
   x = 1,136.32