Finding the Fourth Proportional to 1,105.62, 1,525.28 and 727.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,105.62 : 1,525.28 = 727.42 : x
2. Step 2: Convert to fraction form
   1,105.62/1,525.28 = 727.42/x
3. Step 3: Cross multiply
   1,105.62x = 1,525.28 × 727.42
4. Step 4: Simplify right side
   1,105.62x = 1,109,519.18
5. Step 5: Solve for x
   x = 1,109,519.18/1,105.62
6. Step 6: Final answer
   x = 1,003.53