Finding the Fourth Proportional to 3,907.91, 5,860.92 and 1,443.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,907.91 : 5,860.92 = 1,443.89 : x
2. Step 2: Convert to fraction form
   3,907.91/5,860.92 = 1,443.89/x
3. Step 3: Cross multiply
   3,907.91x = 5,860.92 × 1,443.89
4. Step 4: Simplify right side
   3,907.91x = 8,462,523.78
5. Step 5: Solve for x
   x = 8,462,523.78/3,907.91
6. Step 6: Final answer
   x = 2,165.49