Finding the Fourth Proportional to 2,498.94, 3,739.57 and 2,156.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,498.94 : 3,739.57 = 2,156.31 : x
2. Step 2: Convert to fraction form
   2,498.94/3,739.57 = 2,156.31/x
3. Step 3: Cross multiply
   2,498.94x = 3,739.57 × 2,156.31
4. Step 4: Simplify right side
   2,498.94x = 8,063,666.80
5. Step 5: Solve for x
   x = 8,063,666.80/2,498.94
6. Step 6: Final answer
   x = 3,226.83