Finding the Fourth Proportional to 2,067.62, 2,853.76 and 1,271.63

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.62 : 2,853.76 = 1,271.63 : x
2. Step 2: Convert to fraction form
   2,067.62/2,853.76 = 1,271.63/x
3. Step 3: Cross multiply
   2,067.62x = 2,853.76 × 1,271.63
4. Step 4: Simplify right side
   2,067.62x = 3,628,920.90
5. Step 5: Solve for x
   x = 3,628,920.90/2,067.62
6. Step 6: Final answer
   x = 1,755.12