Finding the Fourth Proportional to 3,128.72, 4,694.90 and 2,250.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,128.72 : 4,694.90 = 2,250.27 : x
2. Step 2: Convert to fraction form
   3,128.72/4,694.90 = 2,250.27/x
3. Step 3: Cross multiply
   3,128.72x = 4,694.90 × 2,250.27
4. Step 4: Simplify right side
   3,128.72x = 10,564,781.37
5. Step 5: Solve for x
   x = 10,564,781.37/3,128.72
6. Step 6: Final answer
   x = 3,376.72