Finding the Fourth Proportional to 2,606.43, 3,908.72 and 757.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,606.43 : 3,908.72 = 757.07 : x
2. Step 2: Convert to fraction form
   2,606.43/3,908.72 = 757.07/x
3. Step 3: Cross multiply
   2,606.43x = 3,908.72 × 757.07
4. Step 4: Simplify right side
   2,606.43x = 2,959,151.32
5. Step 5: Solve for x
   x = 2,959,151.32/2,606.43
6. Step 6: Final answer
   x = 1,135.33