Finding the Fourth Proportional to 2,458.89, 3,393.23 and 1,339.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458.89 : 3,393.23 = 1,339.79 : x
2. Step 2: Convert to fraction form
   2,458.89/3,393.23 = 1,339.79/x
3. Step 3: Cross multiply
   2,458.89x = 3,393.23 × 1,339.79
4. Step 4: Simplify right side
   2,458.89x = 4,546,191.96
5. Step 5: Solve for x
   x = 4,546,191.96/2,458.89
6. Step 6: Final answer
   x = 1,848.88