Finding the Fourth Proportional to 3,238.02, 4,854.78 and 2,139.04

Step by Step Solution

1. Step 1: Write the proportion equation
   3,238.02 : 4,854.78 = 2,139.04 : x
2. Step 2: Convert to fraction form
   3,238.02/4,854.78 = 2,139.04/x
3. Step 3: Cross multiply
   3,238.02x = 4,854.78 × 2,139.04
4. Step 4: Simplify right side
   3,238.02x = 10,384,568.61
5. Step 5: Solve for x
   x = 10,384,568.61/3,238.02
6. Step 6: Final answer
   x = 3,207.07