Finding the Fourth Proportional to 3,969.10, 5,476.80 and 2,200.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,969.10 : 5,476.80 = 2,200.82 : x
2. Step 2: Convert to fraction form
   3,969.10/5,476.80 = 2,200.82/x
3. Step 3: Cross multiply
   3,969.10x = 5,476.80 × 2,200.82
4. Step 4: Simplify right side
   3,969.10x = 12,053,450.98
5. Step 5: Solve for x
   x = 12,053,450.98/3,969.10
6. Step 6: Final answer
   x = 3,036.82