Finding the Fourth Proportional to 2,834.14, 4,250.55 and 1,078.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,834.14 : 4,250.55 = 1,078.78 : x
2. Step 2: Convert to fraction form
   2,834.14/4,250.55 = 1,078.78/x
3. Step 3: Cross multiply
   2,834.14x = 4,250.55 × 1,078.78
4. Step 4: Simplify right side
   2,834.14x = 4,585,408.33
5. Step 5: Solve for x
   x = 4,585,408.33/2,834.14
6. Step 6: Final answer
   x = 1,617.92