Finding the Fourth Proportional to 2,267.24, 3,128.01 and 1,272.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.24 : 3,128.01 = 1,272.38 : x
2. Step 2: Convert to fraction form
   2,267.24/3,128.01 = 1,272.38/x
3. Step 3: Cross multiply
   2,267.24x = 3,128.01 × 1,272.38
4. Step 4: Simplify right side
   2,267.24x = 3,980,017.36
5. Step 5: Solve for x
   x = 3,980,017.36/2,267.24
6. Step 6: Final answer
   x = 1,755.45