Finding the Fourth Proportional to 2,067.48, 2,853.72 and 1,281.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,067.48 : 2,853.72 = 1,281.78 : x
2. Step 2: Convert to fraction form
   2,067.48/2,853.72 = 1,281.78/x
3. Step 3: Cross multiply
   2,067.48x = 2,853.72 × 1,281.78
4. Step 4: Simplify right side
   2,067.48x = 3,657,841.22
5. Step 5: Solve for x
   x = 3,657,841.22/2,067.48
6. Step 6: Final answer
   x = 1,769.23