Finding the Fourth Proportional to 2,266.62, 3,127.86 and 1,272.06

Step by Step Solution

1. Step 1: Write the proportion equation
   2,266.62 : 3,127.86 = 1,272.06 : x
2. Step 2: Convert to fraction form
   2,266.62/3,127.86 = 1,272.06/x
3. Step 3: Cross multiply
   2,266.62x = 3,127.86 × 1,272.06
4. Step 4: Simplify right side
   2,266.62x = 3,978,825.59
5. Step 5: Solve for x
   x = 3,978,825.59/2,266.62
6. Step 6: Final answer
   x = 1,755.40