Finding the Fourth Proportional to 3,915.09, 5,868.72 and 2,824.56

Step by Step Solution

1. Step 1: Write the proportion equation
   3,915.09 : 5,868.72 = 2,824.56 : x
2. Step 2: Convert to fraction form
   3,915.09/5,868.72 = 2,824.56/x
3. Step 3: Cross multiply
   3,915.09x = 5,868.72 × 2,824.56
4. Step 4: Simplify right side
   3,915.09x = 16,576,551.76
5. Step 5: Solve for x
   x = 16,576,551.76/3,915.09
6. Step 6: Final answer
   x = 4,234.02