Finding the Fourth Proportional to 2,251.24, 3,106.71 and 1,256.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251.24 : 3,106.71 = 1,256.71 : x
2. Step 2: Convert to fraction form
   2,251.24/3,106.71 = 1,256.71/x
3. Step 3: Cross multiply
   2,251.24x = 3,106.71 × 1,256.71
4. Step 4: Simplify right side
   2,251.24x = 3,904,233.52
5. Step 5: Solve for x
   x = 3,904,233.52/2,251.24
6. Step 6: Final answer
   x = 1,734.26