Finding the Fourth Proportional to 2,498.18, 3,439.42 and 2,055.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.18 : 3,439.42 = 2,055.31 : x
2. Step 2: Convert to fraction form
   2,498.18/3,439.42 = 2,055.31/x
3. Step 3: Cross multiply
   2,498.18x = 3,439.42 × 2,055.31
4. Step 4: Simplify right side
   2,498.18x = 7,069,060.58
5. Step 5: Solve for x
   x = 7,069,060.58/2,498.18
6. Step 6: Final answer
   x = 2,829.69