Finding the Fourth Proportional to 2,673.85, 3,689.89 and 1,478.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.85 : 3,689.89 = 1,478.92 : x
2. Step 2: Convert to fraction form
   2,673.85/3,689.89 = 1,478.92/x
3. Step 3: Cross multiply
   2,673.85x = 3,689.89 × 1,478.92
4. Step 4: Simplify right side
   2,673.85x = 5,457,052.12
5. Step 5: Solve for x
   x = 5,457,052.12/2,673.85
6. Step 6: Final answer
   x = 2,040.90