Finding the Fourth Proportional to 3,910.16, 5,397.72 and 2,418.08

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.16 : 5,397.72 = 2,418.08 : x
2. Step 2: Convert to fraction form
   3,910.16/5,397.72 = 2,418.08/x
3. Step 3: Cross multiply
   3,910.16x = 5,397.72 × 2,418.08
4. Step 4: Simplify right side
   3,910.16x = 13,052,118.78
5. Step 5: Solve for x
   x = 13,052,118.78/3,910.16
6. Step 6: Final answer
   x = 3,338.00