Finding the Fourth Proportional to 2,510.19, 3,764.25 and 866.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,510.19 : 3,764.25 = 866.25 : x
2. Step 2: Convert to fraction form
   2,510.19/3,764.25 = 866.25/x
3. Step 3: Cross multiply
   2,510.19x = 3,764.25 × 866.25
4. Step 4: Simplify right side
   2,510.19x = 3,260,781.56
5. Step 5: Solve for x
   x = 3,260,781.56/2,510.19
6. Step 6: Final answer
   x = 1,299.02