Finding the Fourth Proportional to 3,974.08, 5,468.16 and 3,872.32

Step by Step Solution

1. Step 1: Write the proportion equation
   3,974.08 : 5,468.16 = 3,872.32 : x
2. Step 2: Convert to fraction form
   3,974.08/5,468.16 = 3,872.32/x
3. Step 3: Cross multiply
   3,974.08x = 5,468.16 × 3,872.32
4. Step 4: Simplify right side
   3,974.08x = 21,174,465.33
5. Step 5: Solve for x
   x = 21,174,465.33/3,974.08
6. Step 6: Final answer
   x = 5,328.14