Finding the Fourth Proportional to 3,081.98, 4,251.15 and 2,137.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,081.98 : 4,251.15 = 2,137.32 : x
2. Step 2: Convert to fraction form
   3,081.98/4,251.15 = 2,137.32/x
3. Step 3: Cross multiply
   3,081.98x = 4,251.15 × 2,137.32
4. Step 4: Simplify right side
   3,081.98x = 9,086,067.92
5. Step 5: Solve for x
   x = 9,086,067.92/3,081.98
6. Step 6: Final answer
   x = 2,948.12