Finding the Fourth Proportional to 3,578.69, 4,939.10 and 2,162.52

Step by Step Solution

1. Step 1: Write the proportion equation
   3,578.69 : 4,939.10 = 2,162.52 : x
2. Step 2: Convert to fraction form
   3,578.69/4,939.10 = 2,162.52/x
3. Step 3: Cross multiply
   3,578.69x = 4,939.10 × 2,162.52
4. Step 4: Simplify right side
   3,578.69x = 10,680,891.72
5. Step 5: Solve for x
   x = 10,680,891.72/3,578.69
6. Step 6: Final answer
   x = 2,984.59