Finding the Fourth Proportional to 2,934.30, 4,400.76 and 853.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,934.30 : 4,400.76 = 853.82 : x
2. Step 2: Convert to fraction form
   2,934.30/4,400.76 = 853.82/x
3. Step 3: Cross multiply
   2,934.30x = 4,400.76 × 853.82
4. Step 4: Simplify right side
   2,934.30x = 3,757,456.90
5. Step 5: Solve for x
   x = 3,757,456.90/2,934.30
6. Step 6: Final answer
   x = 1,280.53