Finding the Fourth Proportional to 2,456.72, 3,389.32 and 1,512.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.72 : 3,389.32 = 1,512.28 : x
2. Step 2: Convert to fraction form
   2,456.72/3,389.32 = 1,512.28/x
3. Step 3: Cross multiply
   2,456.72x = 3,389.32 × 1,512.28
4. Step 4: Simplify right side
   2,456.72x = 5,125,600.85
5. Step 5: Solve for x
   x = 5,125,600.85/2,456.72
6. Step 6: Final answer
   x = 2,086.36