Finding the Fourth Proportional to 2,251.50, 3,107.01 and 1,256.75

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251.50 : 3,107.01 = 1,256.75 : x
2. Step 2: Convert to fraction form
   2,251.50/3,107.01 = 1,256.75/x
3. Step 3: Cross multiply
   2,251.50x = 3,107.01 × 1,256.75
4. Step 4: Simplify right side
   2,251.50x = 3,904,734.82
5. Step 5: Solve for x
   x = 3,904,734.82/2,251.50
6. Step 6: Final answer
   x = 1,734.28