Finding the Fourth Proportional to 3,868.47, 5,352.56 and 3,372.15

Step by Step Solution

1. Step 1: Write the proportion equation
   3,868.47 : 5,352.56 = 3,372.15 : x
2. Step 2: Convert to fraction form
   3,868.47/5,352.56 = 3,372.15/x
3. Step 3: Cross multiply
   3,868.47x = 5,352.56 × 3,372.15
4. Step 4: Simplify right side
   3,868.47x = 18,049,618.34
5. Step 5: Solve for x
   x = 18,049,618.34/3,868.47
6. Step 6: Final answer
   x = 4,665.83