Finding the Fourth Proportional to 2,264.48, 3,124.80 and 1,256.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,264.48 : 3,124.80 = 1,256.12 : x
2. Step 2: Convert to fraction form
   2,264.48/3,124.80 = 1,256.12/x
3. Step 3: Cross multiply
   2,264.48x = 3,124.80 × 1,256.12
4. Step 4: Simplify right side
   2,264.48x = 3,925,123.78
5. Step 5: Solve for x
   x = 3,925,123.78/2,264.48
6. Step 6: Final answer
   x = 1,733.34