Finding the Fourth Proportional to 2,730.56, 3,766.14 and 2,139.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,730.56 : 3,766.14 = 2,139.92 : x
2. Step 2: Convert to fraction form
   2,730.56/3,766.14 = 2,139.92/x
3. Step 3: Cross multiply
   2,730.56x = 3,766.14 × 2,139.92
4. Step 4: Simplify right side
   2,730.56x = 8,059,238.31
5. Step 5: Solve for x
   x = 8,059,238.31/2,730.56
6. Step 6: Final answer
   x = 2,951.50