Finding the Fourth Proportional to 1,519.10, 2,275.82 and 867.86

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.10 : 2,275.82 = 867.86 : x
2. Step 2: Convert to fraction form
   1,519.10/2,275.82 = 867.86/x
3. Step 3: Cross multiply
   1,519.10x = 2,275.82 × 867.86
4. Step 4: Simplify right side
   1,519.10x = 1,975,093.15
5. Step 5: Solve for x
   x = 1,975,093.15/1,519.10
6. Step 6: Final answer
   x = 1,300.17