Finding the Fourth Proportional to 5,359.34, 8,039.37 and 1,661.08

Step by Step Solution

1. Step 1: Write the proportion equation
   5,359.34 : 8,039.37 = 1,661.08 : x
2. Step 2: Convert to fraction form
   5,359.34/8,039.37 = 1,661.08/x
3. Step 3: Cross multiply
   5,359.34x = 8,039.37 × 1,661.08
4. Step 4: Simplify right side
   5,359.34x = 13,354,016.62
5. Step 5: Solve for x
   x = 13,354,016.62/5,359.34
6. Step 6: Final answer
   x = 2,491.73