Finding the Fourth Proportional to 3,578.52, 4,937.88 and 2,086.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,578.52 : 4,937.88 = 2,086.32 : x
2. Step 2: Convert to fraction form
   3,578.52/4,937.88 = 2,086.32/x
3. Step 3: Cross multiply
   3,578.52x = 4,937.88 × 2,086.32
4. Step 4: Simplify right side
   3,578.52x = 10,301,997.80
5. Step 5: Solve for x
   x = 10,301,997.80/3,578.52
6. Step 6: Final answer
   x = 2,878.84