Finding the Fourth Proportional to 2,251.59, 3,106.81 and 1,256.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251.59 : 3,106.81 = 1,256.83 : x
2. Step 2: Convert to fraction form
   2,251.59/3,106.81 = 1,256.83/x
3. Step 3: Cross multiply
   2,251.59x = 3,106.81 × 1,256.83
4. Step 4: Simplify right side
   2,251.59x = 3,904,732.01
5. Step 5: Solve for x
   x = 3,904,732.01/2,251.59
6. Step 6: Final answer
   x = 1,734.21