Finding the Fourth Proportional to 8,588.05, 12,882.59 and 2,665.50

Step by Step Solution

1. Step 1: Write the proportion equation
   8,588.05 : 12,882.59 = 2,665.50 : x
2. Step 2: Convert to fraction form
   8,588.05/12,882.59 = 2,665.50/x
3. Step 3: Cross multiply
   8,588.05x = 12,882.59 × 2,665.50
4. Step 4: Simplify right side
   8,588.05x = 34,338,543.65
5. Step 5: Solve for x
   x = 34,338,543.65/8,588.05
6. Step 6: Final answer
   x = 3,998.41