Finding the Fourth Proportional to 2,456.27, 3,389.27 and 1,408.13

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.27 : 3,389.27 = 1,408.13 : x
2. Step 2: Convert to fraction form
   2,456.27/3,389.27 = 1,408.13/x
3. Step 3: Cross multiply
   2,456.27x = 3,389.27 × 1,408.13
4. Step 4: Simplify right side
   2,456.27x = 4,772,508.78
5. Step 5: Solve for x
   x = 4,772,508.78/2,456.27
6. Step 6: Final answer
   x = 1,942.99