Finding the Fourth Proportional to 2,456.58, 3,390.12 and 1,394.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,456.58 : 3,390.12 = 1,394.27 : x
2. Step 2: Convert to fraction form
   2,456.58/3,390.12 = 1,394.27/x
3. Step 3: Cross multiply
   2,456.58x = 3,390.12 × 1,394.27
4. Step 4: Simplify right side
   2,456.58x = 4,726,742.61
5. Step 5: Solve for x
   x = 4,726,742.61/2,456.58
6. Step 6: Final answer
   x = 1,924.12