Finding the Fourth Proportional to 2,256.24, 3,113.52 and 1,248

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.24 : 3,113.52 = 1,248 : x
2. Step 2: Convert to fraction form
   2,256.24/3,113.52 = 1,248/x
3. Step 3: Cross multiply
   2,256.24x = 3,113.52 × 1,248
4. Step 4: Simplify right side
   2,256.24x = 3,885,672.96
5. Step 5: Solve for x
   x = 3,885,672.96/2,256.24
6. Step 6: Final answer
   x = 1,722.19