Finding the Fourth Proportional to 2,934.86, 4,401.56 and 854.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,934.86 : 4,401.56 = 854.42 : x
2. Step 2: Convert to fraction form
   2,934.86/4,401.56 = 854.42/x
3. Step 3: Cross multiply
   2,934.86x = 4,401.56 × 854.42
4. Step 4: Simplify right side
   2,934.86x = 3,760,780.90
5. Step 5: Solve for x
   x = 3,760,780.90/2,934.86
6. Step 6: Final answer
   x = 1,281.42