Finding the Fourth Proportional to 2,673.81, 3,689.82 and 1,478.79

Step by Step Solution

1. Step 1: Write the proportion equation
   2,673.81 : 3,689.82 = 1,478.79 : x
2. Step 2: Convert to fraction form
   2,673.81/3,689.82 = 1,478.79/x
3. Step 3: Cross multiply
   2,673.81x = 3,689.82 × 1,478.79
4. Step 4: Simplify right side
   2,673.81x = 5,456,468.92
5. Step 5: Solve for x
   x = 5,456,468.92/2,673.81
6. Step 6: Final answer
   x = 2,040.71