Finding the Fourth Proportional to 3,661.30, 5,052.45 and 2,089.09

Step by Step Solution

1. Step 1: Write the proportion equation
   3,661.30 : 5,052.45 = 2,089.09 : x
2. Step 2: Convert to fraction form
   3,661.30/5,052.45 = 2,089.09/x
3. Step 3: Cross multiply
   3,661.30x = 5,052.45 × 2,089.09
4. Step 4: Simplify right side
   3,661.30x = 10,555,022.77
5. Step 5: Solve for x
   x = 10,555,022.77/3,661.30
6. Step 6: Final answer
   x = 2,882.86