Finding the Fourth Proportional to 2,866.91, 3,959.00 and 2,711.58

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.91 : 3,959.00 = 2,711.58 : x
2. Step 2: Convert to fraction form
   2,866.91/3,959.00 = 2,711.58/x
3. Step 3: Cross multiply
   2,866.91x = 3,959.00 × 2,711.58
4. Step 4: Simplify right side
   2,866.91x = 10,735,134.61
5. Step 5: Solve for x
   x = 10,735,134.61/2,866.91
6. Step 6: Final answer
   x = 3,744.50