Finding the Fourth Proportional to 2,498.88, 3,445.87 and 2,145.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.88 : 3,445.87 = 2,145.97 : x
2. Step 2: Convert to fraction form
   2,498.88/3,445.87 = 2,145.97/x
3. Step 3: Cross multiply
   2,498.88x = 3,445.87 × 2,145.97
4. Step 4: Simplify right side
   2,498.88x = 7,394,756.27
5. Step 5: Solve for x
   x = 7,394,756.27/2,498.88
6. Step 6: Final answer
   x = 2,959.22