Finding the Fourth Proportional to 2,458.49, 3,392.55 and 1,339.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458.49 : 3,392.55 = 1,339.42 : x
2. Step 2: Convert to fraction form
   2,458.49/3,392.55 = 1,339.42/x
3. Step 3: Cross multiply
   2,458.49x = 3,392.55 × 1,339.42
4. Step 4: Simplify right side
   2,458.49x = 4,544,049.32
5. Step 5: Solve for x
   x = 4,544,049.32/2,458.49
6. Step 6: Final answer
   x = 1,848.31