Finding the Fourth Proportional to 2,250.10, 3,105.03 and 1,255.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250.10 : 3,105.03 = 1,255.20 : x
2. Step 2: Convert to fraction form
   2,250.10/3,105.03 = 1,255.20/x
3. Step 3: Cross multiply
   2,250.10x = 3,105.03 × 1,255.20
4. Step 4: Simplify right side
   2,250.10x = 3,897,433.66
5. Step 5: Solve for x
   x = 3,897,433.66/2,250.10
6. Step 6: Final answer
   x = 1,732.12