Finding the Fourth Proportional to 5,510.96, 8,266.89 and 2,587.67

Step by Step Solution

1. Step 1: Write the proportion equation
   5,510.96 : 8,266.89 = 2,587.67 : x
2. Step 2: Convert to fraction form
   5,510.96/8,266.89 = 2,587.67/x
3. Step 3: Cross multiply
   5,510.96x = 8,266.89 × 2,587.67
4. Step 4: Simplify right side
   5,510.96x = 21,391,983.25
5. Step 5: Solve for x
   x = 21,391,983.25/5,510.96
6. Step 6: Final answer
   x = 3,881.72