Finding the Fourth Proportional to 3,667.40, 5,061.18 and 2,176.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.40 : 5,061.18 = 2,176.20 : x
2. Step 2: Convert to fraction form
   3,667.40/5,061.18 = 2,176.20/x
3. Step 3: Cross multiply
   3,667.40x = 5,061.18 × 2,176.20
4. Step 4: Simplify right side
   3,667.40x = 11,014,139.92
5. Step 5: Solve for x
   x = 11,014,139.92/3,667.40
6. Step 6: Final answer
   x = 3,003.26