Finding the Fourth Proportional to 2,550.92, 3,519.74 and 1,668.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.92 : 3,519.74 = 1,668.02 : x
2. Step 2: Convert to fraction form
   2,550.92/3,519.74 = 1,668.02/x
3. Step 3: Cross multiply
   2,550.92x = 3,519.74 × 1,668.02
4. Step 4: Simplify right side
   2,550.92x = 5,870,996.71
5. Step 5: Solve for x
   x = 5,870,996.71/2,550.92
6. Step 6: Final answer
   x = 2,301.52