Finding the Fourth Proportional to 2,250.42, 3,105.66 and 1,255.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250.42 : 3,105.66 = 1,255.74 : x
2. Step 2: Convert to fraction form
   2,250.42/3,105.66 = 1,255.74/x
3. Step 3: Cross multiply
   2,250.42x = 3,105.66 × 1,255.74
4. Step 4: Simplify right side
   2,250.42x = 3,899,895.21
5. Step 5: Solve for x
   x = 3,899,895.21/2,250.42
6. Step 6: Final answer
   x = 1,732.96