Finding the Fourth Proportional to 3,222.45, 4,827.98 and 2,822.67

Step by Step Solution

1. Step 1: Write the proportion equation
   3,222.45 : 4,827.98 = 2,822.67 : x
2. Step 2: Convert to fraction form
   3,222.45/4,827.98 = 2,822.67/x
3. Step 3: Cross multiply
   3,222.45x = 4,827.98 × 2,822.67
4. Step 4: Simplify right side
   3,222.45x = 13,627,794.31
5. Step 5: Solve for x
   x = 13,627,794.31/3,222.45
6. Step 6: Final answer
   x = 4,229.02