Finding the Fourth Proportional to 2,456.12, 3,389.82 and 1,408.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.12 : 3,389.82 = 1,408.52 : x
2. Step 2: Convert to fraction form
   2,456.12/3,389.82 = 1,408.52/x
3. Step 3: Cross multiply
   2,456.12x = 3,389.82 × 1,408.52
4. Step 4: Simplify right side
   2,456.12x = 4,774,629.27
5. Step 5: Solve for x
   x = 4,774,629.27/2,456.12
6. Step 6: Final answer
   x = 1,943.97