Finding the Fourth Proportional to 3,578.27, 4,938.28 and 2,086.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,578.27 : 4,938.28 = 2,086.25 : x
2. Step 2: Convert to fraction form
   3,578.27/4,938.28 = 2,086.25/x
3. Step 3: Cross multiply
   3,578.27x = 4,938.28 × 2,086.25
4. Step 4: Simplify right side
   3,578.27x = 10,302,456.74
5. Step 5: Solve for x
   x = 10,302,456.74/3,578.27
6. Step 6: Final answer
   x = 2,879.18