Finding the Fourth Proportional to 3,498.30, 4,826.43 and 2,239.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,498.30 : 4,826.43 = 2,239.56 : x
2. Step 2: Convert to fraction form
   3,498.30/4,826.43 = 2,239.56/x
3. Step 3: Cross multiply
   3,498.30x = 4,826.43 × 2,239.56
4. Step 4: Simplify right side
   3,498.30x = 10,809,079.57
5. Step 5: Solve for x
   x = 10,809,079.57/3,498.30
6. Step 6: Final answer
   x = 3,089.81