Finding the Fourth Proportional to 8,490.43, 12,734.25 and 2,250.83

Step by Step Solution

1. Step 1: Write the proportion equation
   8,490.43 : 12,734.25 = 2,250.83 : x
2. Step 2: Convert to fraction form
   8,490.43/12,734.25 = 2,250.83/x
3. Step 3: Cross multiply
   8,490.43x = 12,734.25 × 2,250.83
4. Step 4: Simplify right side
   8,490.43x = 28,662,631.93
5. Step 5: Solve for x
   x = 28,662,631.93/8,490.43
6. Step 6: Final answer
   x = 3,375.88