Finding the Fourth Proportional to 1,519.24, 2,276.52 and 787.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,519.24 : 2,276.52 = 787.72 : x
2. Step 2: Convert to fraction form
   1,519.24/2,276.52 = 787.72/x
3. Step 3: Cross multiply
   1,519.24x = 2,276.52 × 787.72
4. Step 4: Simplify right side
   1,519.24x = 1,793,260.33
5. Step 5: Solve for x
   x = 1,793,260.33/1,519.24
6. Step 6: Final answer
   x = 1,180.37