Finding the Fourth Proportional to 2,267.69, 3,128.22 and 1,426.80

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.69 : 3,128.22 = 1,426.80 : x
2. Step 2: Convert to fraction form
   2,267.69/3,128.22 = 1,426.80/x
3. Step 3: Cross multiply
   2,267.69x = 3,128.22 × 1,426.80
4. Step 4: Simplify right side
   2,267.69x = 4,463,344.30
5. Step 5: Solve for x
   x = 4,463,344.30/2,267.69
6. Step 6: Final answer
   x = 1,968.24