Finding the Fourth Proportional to 3,144.69, 4,719.15 and 2,169.05

Step by Step Solution

1. Step 1: Write the proportion equation
   3,144.69 : 4,719.15 = 2,169.05 : x
2. Step 2: Convert to fraction form
   3,144.69/4,719.15 = 2,169.05/x
3. Step 3: Cross multiply
   3,144.69x = 4,719.15 × 2,169.05
4. Step 4: Simplify right side
   3,144.69x = 10,236,048.71
5. Step 5: Solve for x
   x = 10,236,048.71/3,144.69
6. Step 6: Final answer
   x = 3,255.03