Finding the Fourth Proportional to 2,256.97, 3,114.90 and 1,262.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.97 : 3,114.90 = 1,262.31 : x
2. Step 2: Convert to fraction form
   2,256.97/3,114.90 = 1,262.31/x
3. Step 3: Cross multiply
   2,256.97x = 3,114.90 × 1,262.31
4. Step 4: Simplify right side
   2,256.97x = 3,931,969.42
5. Step 5: Solve for x
   x = 3,931,969.42/2,256.97
6. Step 6: Final answer
   x = 1,742.15