Finding the Fourth Proportional to 1,510.98, 2,266.89 and 862.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,510.98 : 2,266.89 = 862.17 : x
2. Step 2: Convert to fraction form
   1,510.98/2,266.89 = 862.17/x
3. Step 3: Cross multiply
   1,510.98x = 2,266.89 × 862.17
4. Step 4: Simplify right side
   1,510.98x = 1,954,444.55
5. Step 5: Solve for x
   x = 1,954,444.55/1,510.98
6. Step 6: Final answer
   x = 1,293.49