Finding the Fourth Proportional to 2,256.34, 3,113.82 and 1,248.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.34 : 3,113.82 = 1,248.06 : x
2. Step 2: Convert to fraction form
   2,256.34/3,113.82 = 1,248.06/x
3. Step 3: Cross multiply
   2,256.34x = 3,113.82 × 1,248.06
4. Step 4: Simplify right side
   2,256.34x = 3,886,234.19
5. Step 5: Solve for x
   x = 3,886,234.19/2,256.34
6. Step 6: Final answer
   x = 1,722.36