Finding the Fourth Proportional to 2,251.42, 3,106.94 and 1,256.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,251.42 : 3,106.94 = 1,256.69 : x
2. Step 2: Convert to fraction form
   2,251.42/3,106.94 = 1,256.69/x
3. Step 3: Cross multiply
   2,251.42x = 3,106.94 × 1,256.69
4. Step 4: Simplify right side
   2,251.42x = 3,904,460.43
5. Step 5: Solve for x
   x = 3,904,460.43/2,251.42
6. Step 6: Final answer
   x = 1,734.23