Finding the Fourth Proportional to 8,510.61, 12,766.00 and 2,588.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,510.61 : 12,766.00 = 2,588.45 : x
2. Step 2: Convert to fraction form
   8,510.61/12,766.00 = 2,588.45/x
3. Step 3: Cross multiply
   8,510.61x = 12,766.00 × 2,588.45
4. Step 4: Simplify right side
   8,510.61x = 33,044,171.67
5. Step 5: Solve for x
   x = 33,044,171.67/8,510.61
6. Step 6: Final answer
   x = 3,882.71