Finding the Fourth Proportional to 3,995.33, 5,983.82 and 1,916.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,995.33 : 5,983.82 = 1,916.79 : x
2. Step 2: Convert to fraction form
   3,995.33/5,983.82 = 1,916.79/x
3. Step 3: Cross multiply
   3,995.33x = 5,983.82 × 1,916.79
4. Step 4: Simplify right side
   3,995.33x = 11,469,716.75
5. Step 5: Solve for x
   x = 11,469,716.75/3,995.33
6. Step 6: Final answer
   x = 2,870.78