Finding the Fourth Proportional to 3,878.31, 5,819.27 and 3,329.31

Step by Step Solution

1. Step 1: Write the proportion equation
   3,878.31 : 5,819.27 = 3,329.31 : x
2. Step 2: Convert to fraction form
   3,878.31/5,819.27 = 3,329.31/x
3. Step 3: Cross multiply
   3,878.31x = 5,819.27 × 3,329.31
4. Step 4: Simplify right side
   3,878.31x = 19,374,137.16
5. Step 5: Solve for x
   x = 19,374,137.16/3,878.31
6. Step 6: Final answer
   x = 4,995.51