Finding the Fourth Proportional to 2,394.86, 3,590.78 and 1,078.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,394.86 : 3,590.78 = 1,078.34 : x
2. Step 2: Convert to fraction form
   2,394.86/3,590.78 = 1,078.34/x
3. Step 3: Cross multiply
   2,394.86x = 3,590.78 × 1,078.34
4. Step 4: Simplify right side
   2,394.86x = 3,872,063.75
5. Step 5: Solve for x
   x = 3,872,063.75/2,394.86
6. Step 6: Final answer
   x = 1,616.83