Finding the Fourth Proportional to 2,267.43, 3,128.82 and 1,272.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,267.43 : 3,128.82 = 1,272.48 : x
2. Step 2: Convert to fraction form
   2,267.43/3,128.82 = 1,272.48/x
3. Step 3: Cross multiply
   2,267.43x = 3,128.82 × 1,272.48
4. Step 4: Simplify right side
   2,267.43x = 3,981,360.87
5. Step 5: Solve for x
   x = 3,981,360.87/2,267.43
6. Step 6: Final answer
   x = 1,755.89