Finding the Fourth Proportional to 3,929.04, 5,422.10 and 2,250.50

Step by Step Solution

1. Step 1: Write the proportion equation
   3,929.04 : 5,422.10 = 2,250.50 : x
2. Step 2: Convert to fraction form
   3,929.04/5,422.10 = 2,250.50/x
3. Step 3: Cross multiply
   3,929.04x = 5,422.10 × 2,250.50
4. Step 4: Simplify right side
   3,929.04x = 12,202,397.69
5. Step 5: Solve for x
   x = 12,202,397.69/3,929.04
6. Step 6: Final answer
   x = 3,105.69