Finding the Fourth Proportional to 3,906.50, 5,391.02 and 2,250.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,906.50 : 5,391.02 = 2,250.50 : x
2. Step 2: Convert to fraction form
   3,906.50/5,391.02 = 2,250.50/x
3. Step 3: Cross multiply
   3,906.50x = 5,391.02 × 2,250.50
4. Step 4: Simplify right side
   3,906.50x = 12,132,490.51
5. Step 5: Solve for x
   x = 12,132,490.51/3,906.50
6. Step 6: Final answer
   x = 3,105.72