Finding the Fourth Proportional to 3,522.18, 4,861.12 and 2,196.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,522.18 : 4,861.12 = 2,196.30 : x
2. Step 2: Convert to fraction form
   3,522.18/4,861.12 = 2,196.30/x
3. Step 3: Cross multiply
   3,522.18x = 4,861.12 × 2,196.30
4. Step 4: Simplify right side
   3,522.18x = 10,676,477.86
5. Step 5: Solve for x
   x = 10,676,477.86/3,522.18
6. Step 6: Final answer
   x = 3,031.21