Finding the Fourth Proportional to 2,999.25, 4,139.91 and 2,439.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,999.25 : 4,139.91 = 2,439.27 : x
2. Step 2: Convert to fraction form
   2,999.25/4,139.91 = 2,439.27/x
3. Step 3: Cross multiply
   2,999.25x = 4,139.91 × 2,439.27
4. Step 4: Simplify right side
   2,999.25x = 10,098,358.27
5. Step 5: Solve for x
   x = 10,098,358.27/2,999.25
6. Step 6: Final answer
   x = 3,366.96