Finding the Fourth Proportional to 3,908.90, 5,864.00 and 1,443.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,908.90 : 5,864.00 = 1,443.72 : x
2. Step 2: Convert to fraction form
   3,908.90/5,864.00 = 1,443.72/x
3. Step 3: Cross multiply
   3,908.90x = 5,864.00 × 1,443.72
4. Step 4: Simplify right side
   3,908.90x = 8,465,966.86
5. Step 5: Solve for x
   x = 8,465,966.86/3,908.90
6. Step 6: Final answer
   x = 2,165.82