Finding the Fourth Proportional to 1,519.59, 2,275.71 and 868.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.59 : 2,275.71 = 868.35 : x
2. Step 2: Convert to fraction form
   1,519.59/2,275.71 = 868.35/x
3. Step 3: Cross multiply
   1,519.59x = 2,275.71 × 868.35
4. Step 4: Simplify right side
   1,519.59x = 1,976,112.78
5. Step 5: Solve for x
   x = 1,976,112.78/1,519.59
6. Step 6: Final answer
   x = 1,300.42