Finding the Fourth Proportional to 2,550.69, 3,519.05 and 1,667.00

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.69 : 3,519.05 = 1,667.00 : x
2. Step 2: Convert to fraction form
   2,550.69/3,519.05 = 1,667.00/x
3. Step 3: Cross multiply
   2,550.69x = 3,519.05 × 1,667.00
4. Step 4: Simplify right side
   2,550.69x = 5,866,256.81
5. Step 5: Solve for x
   x = 5,866,256.81/2,550.69
6. Step 6: Final answer
   x = 2,299.87