Finding the Fourth Proportional to 2,667.46, 4,007 and 2,579.98

Step by Step Solution

1. Step 1: Write the proportion equation
   2,667.46 : 4,007 = 2,579.98 : x
2. Step 2: Convert to fraction form
   2,667.46/4,007 = 2,579.98/x
3. Step 3: Cross multiply
   2,667.46x = 4,007 × 2,579.98
4. Step 4: Simplify right side
   2,667.46x = 10,337,979.86
5. Step 5: Solve for x
   x = 10,337,979.86/2,667.46
6. Step 6: Final answer
   x = 3,875.59