Finding the Fourth Proportional to 3,880.69, 5,355.52 and 2,202.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,880.69 : 5,355.52 = 2,202.10 : x
2. Step 2: Convert to fraction form
   3,880.69/5,355.52 = 2,202.10/x
3. Step 3: Cross multiply
   3,880.69x = 5,355.52 × 2,202.10
4. Step 4: Simplify right side
   3,880.69x = 11,793,371.70
5. Step 5: Solve for x
   x = 11,793,371.70/3,880.69
6. Step 6: Final answer
   x = 3,038.99