Finding the Fourth Proportional to 2,458.46, 3,392.76 and 1,339.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,458.46 : 3,392.76 = 1,339.50 : x
2. Step 2: Convert to fraction form
   2,458.46/3,392.76 = 1,339.50/x
3. Step 3: Cross multiply
   2,458.46x = 3,392.76 × 1,339.50
4. Step 4: Simplify right side
   2,458.46x = 4,544,602.02
5. Step 5: Solve for x
   x = 4,544,602.02/2,458.46
6. Step 6: Final answer
   x = 1,848.56