Finding the Fourth Proportional to 3,715.74, 5,559.57 and 2,229.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,715.74 : 5,559.57 = 2,229.30 : x
2. Step 2: Convert to fraction form
   3,715.74/5,559.57 = 2,229.30/x
3. Step 3: Cross multiply
   3,715.74x = 5,559.57 × 2,229.30
4. Step 4: Simplify right side
   3,715.74x = 12,393,949.40
5. Step 5: Solve for x
   x = 12,393,949.40/3,715.74
6. Step 6: Final answer
   x = 3,335.53