Finding the Fourth Proportional to 2,251.55, 3,107.09 and 1,256.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251.55 : 3,107.09 = 1,256.82 : x
2. Step 2: Convert to fraction form
   2,251.55/3,107.09 = 1,256.82/x
3. Step 3: Cross multiply
   2,251.55x = 3,107.09 × 1,256.82
4. Step 4: Simplify right side
   2,251.55x = 3,905,046.57
5. Step 5: Solve for x
   x = 3,905,046.57/2,251.55
6. Step 6: Final answer
   x = 1,734.39