Finding the Fourth Proportional to 2,510.40, 3,765.88 and 867.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.40 : 3,765.88 = 867.30 : x
2. Step 2: Convert to fraction form
   2,510.40/3,765.88 = 867.30/x
3. Step 3: Cross multiply
   2,510.40x = 3,765.88 × 867.30
4. Step 4: Simplify right side
   2,510.40x = 3,266,147.72
5. Step 5: Solve for x
   x = 3,266,147.72/2,510.40
6. Step 6: Final answer
   x = 1,301.05