Finding the Fourth Proportional to 1,100.71, 1,519.05 and 727.44

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.71 : 1,519.05 = 727.44 : x
2. Step 2: Convert to fraction form
   1,100.71/1,519.05 = 727.44/x
3. Step 3: Cross multiply
   1,100.71x = 1,519.05 × 727.44
4. Step 4: Simplify right side
   1,100.71x = 1,105,017.73
5. Step 5: Solve for x
   x = 1,105,017.73/1,100.71
6. Step 6: Final answer
   x = 1,003.91