Finding the Fourth Proportional to 3,581.31, 4,942.22 and 2,009.41

Step by Step Solution

1. Step 1: Write the proportion equation
   3,581.31 : 4,942.22 = 2,009.41 : x
2. Step 2: Convert to fraction form
   3,581.31/4,942.22 = 2,009.41/x
3. Step 3: Cross multiply
   3,581.31x = 4,942.22 × 2,009.41
4. Step 4: Simplify right side
   3,581.31x = 9,930,923.89
5. Step 5: Solve for x
   x = 9,930,923.89/3,581.31
6. Step 6: Final answer
   x = 2,772.98