Finding the Fourth Proportional to 2,668.41, 4,002.42 and 819.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,668.41 : 4,002.42 = 819.37 : x
2. Step 2: Convert to fraction form
   2,668.41/4,002.42 = 819.37/x
3. Step 3: Cross multiply
   2,668.41x = 4,002.42 × 819.37
4. Step 4: Simplify right side
   2,668.41x = 3,279,462.88
5. Step 5: Solve for x
   x = 3,279,462.88/2,668.41
6. Step 6: Final answer
   x = 1,229.00