Finding the Fourth Proportional to 3,667.48, 5,500.37 and 2,187.11

Step by Step Solution

1. Step 1: Write the proportion equation
   3,667.48 : 5,500.37 = 2,187.11 : x
2. Step 2: Convert to fraction form
   3,667.48/5,500.37 = 2,187.11/x
3. Step 3: Cross multiply
   3,667.48x = 5,500.37 × 2,187.11
4. Step 4: Simplify right side
   3,667.48x = 12,029,917.05
5. Step 5: Solve for x
   x = 12,029,917.05/3,667.48
6. Step 6: Final answer
   x = 3,280.16