Finding the Fourth Proportional to 2,256.56, 3,114.03 and 1,248.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.56 : 3,114.03 = 1,248.34 : x
2. Step 2: Convert to fraction form
   2,256.56/3,114.03 = 1,248.34/x
3. Step 3: Cross multiply
   2,256.56x = 3,114.03 × 1,248.34
4. Step 4: Simplify right side
   2,256.56x = 3,887,368.21
5. Step 5: Solve for x
   x = 3,887,368.21/2,256.56
6. Step 6: Final answer
   x = 1,722.70