Finding the Fourth Proportional to 2,250.97, 3,106.17 and 1,256.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,250.97 : 3,106.17 = 1,256.31 : x
2. Step 2: Convert to fraction form
   2,250.97/3,106.17 = 1,256.31/x
3. Step 3: Cross multiply
   2,250.97x = 3,106.17 × 1,256.31
4. Step 4: Simplify right side
   2,250.97x = 3,902,312.43
5. Step 5: Solve for x
   x = 3,902,312.43/2,250.97
6. Step 6: Final answer
   x = 1,733.62