Finding the Fourth Proportional to 3,667.10, 5,057.33 and 2,879.78

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.10 : 5,057.33 = 2,879.78 : x
2. Step 2: Convert to fraction form
   3,667.10/5,057.33 = 2,879.78/x
3. Step 3: Cross multiply
   3,667.10x = 5,057.33 × 2,879.78
4. Step 4: Simplify right side
   3,667.10x = 14,563,958.10
5. Step 5: Solve for x
   x = 14,563,958.10/3,667.10
6. Step 6: Final answer
   x = 3,971.52