Finding the Fourth Proportional to 2,266.73, 3,128.07 and 1,272.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,266.73 : 3,128.07 = 1,272.02 : x
2. Step 2: Convert to fraction form
   2,266.73/3,128.07 = 1,272.02/x
3. Step 3: Cross multiply
   2,266.73x = 3,128.07 × 1,272.02
4. Step 4: Simplify right side
   2,266.73x = 3,978,951.96
5. Step 5: Solve for x
   x = 3,978,951.96/2,266.73
6. Step 6: Final answer
   x = 1,755.37