Finding the Fourth Proportional to 3,752.82, 5,629.92 and 1,287.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,752.82 : 5,629.92 = 1,287.89 : x
2. Step 2: Convert to fraction form
   3,752.82/5,629.92 = 1,287.89/x
3. Step 3: Cross multiply
   3,752.82x = 5,629.92 × 1,287.89
4. Step 4: Simplify right side
   3,752.82x = 7,250,689.52
5. Step 5: Solve for x
   x = 7,250,689.52/3,752.82
6. Step 6: Final answer
   x = 1,932.06