Finding the Fourth Proportional to 2,266.94, 3,128.37 and 1,272.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,266.94 : 3,128.37 = 1,272.23 : x
2. Step 2: Convert to fraction form
   2,266.94/3,128.37 = 1,272.23/x
3. Step 3: Cross multiply
   2,266.94x = 3,128.37 × 1,272.23
4. Step 4: Simplify right side
   2,266.94x = 3,979,990.52
5. Step 5: Solve for x
   x = 3,979,990.52/2,266.94
6. Step 6: Final answer
   x = 1,755.67