Finding the Fourth Proportional to 2,510.27, 3,765.91 and 866.88

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.27 : 3,765.91 = 866.88 : x
2. Step 2: Convert to fraction form
   2,510.27/3,765.91 = 866.88/x
3. Step 3: Cross multiply
   2,510.27x = 3,765.91 × 866.88
4. Step 4: Simplify right side
   2,510.27x = 3,264,592.06
5. Step 5: Solve for x
   x = 3,264,592.06/2,510.27
6. Step 6: Final answer
   x = 1,300.49