Finding the Fourth Proportional to 2,934.47, 4,401.91 and 854.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,934.47 : 4,401.91 = 854.49 : x
2. Step 2: Convert to fraction form
   2,934.47/4,401.91 = 854.49/x
3. Step 3: Cross multiply
   2,934.47x = 4,401.91 × 854.49
4. Step 4: Simplify right side
   2,934.47x = 3,761,405.65
5. Step 5: Solve for x
   x = 3,761,405.65/2,934.47
6. Step 6: Final answer
   x = 1,281.80