Finding the Fourth Proportional to 1,101.20, 1,519.73 and 727.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,101.20 : 1,519.73 = 727.52 : x
2. Step 2: Convert to fraction form
   1,101.20/1,519.73 = 727.52/x
3. Step 3: Cross multiply
   1,101.20x = 1,519.73 × 727.52
4. Step 4: Simplify right side
   1,101.20x = 1,105,638.34
5. Step 5: Solve for x
   x = 1,105,638.34/1,101.20
6. Step 6: Final answer
   x = 1,004.03