Finding the Fourth Proportional to 3,910.53, 5,396.61 and 2,418.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.53 : 5,396.61 = 2,418.42 : x
2. Step 2: Convert to fraction form
   3,910.53/5,396.61 = 2,418.42/x
3. Step 3: Cross multiply
   3,910.53x = 5,396.61 × 2,418.42
4. Step 4: Simplify right side
   3,910.53x = 13,051,269.56
5. Step 5: Solve for x
   x = 13,051,269.56/3,910.53
6. Step 6: Final answer
   x = 3,337.47