Finding the Fourth Proportional to 3,983.86, 5,974.15 and 2,879.02

Step by Step Solution

1. Step 1: Write the proportion equation
   3,983.86 : 5,974.15 = 2,879.02 : x
2. Step 2: Convert to fraction form
   3,983.86/5,974.15 = 2,879.02/x
3. Step 3: Cross multiply
   3,983.86x = 5,974.15 × 2,879.02
4. Step 4: Simplify right side
   3,983.86x = 17,199,697.33
5. Step 5: Solve for x
   x = 17,199,697.33/3,983.86
6. Step 6: Final answer
   x = 4,317.34