Finding the Fourth Proportional to 2,866.69, 4,301.97 and 1,223.59

Step by Step Solution

1. Step 1: Write the proportion equation
   2,866.69 : 4,301.97 = 1,223.59 : x
2. Step 2: Convert to fraction form
   2,866.69/4,301.97 = 1,223.59/x
3. Step 3: Cross multiply
   2,866.69x = 4,301.97 × 1,223.59
4. Step 4: Simplify right side
   2,866.69x = 5,263,847.47
5. Step 5: Solve for x
   x = 5,263,847.47/2,866.69
6. Step 6: Final answer
   x = 1,836.21