Finding the Fourth Proportional to 2,256.78, 3,114.46 and 1,262.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.78 : 3,114.46 = 1,262.15 : x
2. Step 2: Convert to fraction form
   2,256.78/3,114.46 = 1,262.15/x
3. Step 3: Cross multiply
   2,256.78x = 3,114.46 × 1,262.15
4. Step 4: Simplify right side
   2,256.78x = 3,930,915.69
5. Step 5: Solve for x
   x = 3,930,915.69/2,256.78
6. Step 6: Final answer
   x = 1,741.82