Finding the Fourth Proportional to 2,757.27, 3,805.50 and 2,666.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,757.27 : 3,805.50 = 2,666.15 : x
2. Step 2: Convert to fraction form
   2,757.27/3,805.50 = 2,666.15/x
3. Step 3: Cross multiply
   2,757.27x = 3,805.50 × 2,666.15
4. Step 4: Simplify right side
   2,757.27x = 10,146,033.83
5. Step 5: Solve for x
   x = 10,146,033.83/2,757.27
6. Step 6: Final answer
   x = 3,679.74