Finding the Fourth Proportional to 3,498.68, 4,826.07 and 2,239.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,498.68 : 4,826.07 = 2,239.31 : x
2. Step 2: Convert to fraction form
   3,498.68/4,826.07 = 2,239.31/x
3. Step 3: Cross multiply
   3,498.68x = 4,826.07 × 2,239.31
4. Step 4: Simplify right side
   3,498.68x = 10,807,078.88
5. Step 5: Solve for x
   x = 10,807,078.88/3,498.68
6. Step 6: Final answer
   x = 3,088.90