Finding the Fourth Proportional to 3,915.21, 5,404.83 and 2,424.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.21 : 5,404.83 = 2,424.10 : x
2. Step 2: Convert to fraction form
   3,915.21/5,404.83 = 2,424.10/x
3. Step 3: Cross multiply
   3,915.21x = 5,404.83 × 2,424.10
4. Step 4: Simplify right side
   3,915.21x = 13,101,809.26
5. Step 5: Solve for x
   x = 13,101,809.26/3,915.21
6. Step 6: Final answer
   x = 3,346.39