Finding the Fourth Proportional to 3,915.69, 5,867.39 and 2,351.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.69 : 5,867.39 = 2,351.99 : x
2. Step 2: Convert to fraction form
   3,915.69/5,867.39 = 2,351.99/x
3. Step 3: Cross multiply
   3,915.69x = 5,867.39 × 2,351.99
4. Step 4: Simplify right side
   3,915.69x = 13,800,016.92
5. Step 5: Solve for x
   x = 13,800,016.92/3,915.69
6. Step 6: Final answer
   x = 3,524.29