Finding the Fourth Proportional to 2,456.16, 3,389.74 and 1,512.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.16 : 3,389.74 = 1,512.20 : x
2. Step 2: Convert to fraction form
   2,456.16/3,389.74 = 1,512.20/x
3. Step 3: Cross multiply
   2,456.16x = 3,389.74 × 1,512.20
4. Step 4: Simplify right side
   2,456.16x = 5,125,964.83
5. Step 5: Solve for x
   x = 5,125,964.83/2,456.16
6. Step 6: Final answer
   x = 2,086.98