Finding the Fourth Proportional to 3,961.20, 5,464.74 and 2,388.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,961.20 : 5,464.74 = 2,388.42 : x
2. Step 2: Convert to fraction form
   3,961.20/5,464.74 = 2,388.42/x
3. Step 3: Cross multiply
   3,961.20x = 5,464.74 × 2,388.42
4. Step 4: Simplify right side
   3,961.20x = 13,052,094.31
5. Step 5: Solve for x
   x = 13,052,094.31/3,961.20
6. Step 6: Final answer
   x = 3,294.98