Finding the Fourth Proportional to 2,456.76, 3,389.32 and 1,408.24

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.76 : 3,389.32 = 1,408.24 : x
2. Step 2: Convert to fraction form
   2,456.76/3,389.32 = 1,408.24/x
3. Step 3: Cross multiply
   2,456.76x = 3,389.32 × 1,408.24
4. Step 4: Simplify right side
   2,456.76x = 4,772,976.00
5. Step 5: Solve for x
   x = 4,772,976.00/2,456.76
6. Step 6: Final answer
   x = 1,942.79