Finding the Fourth Proportional to 1,100.09, 1,518.35 and 727.11

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.09 : 1,518.35 = 727.11 : x
2. Step 2: Convert to fraction form
   1,100.09/1,518.35 = 727.11/x
3. Step 3: Cross multiply
   1,100.09x = 1,518.35 × 727.11
4. Step 4: Simplify right side
   1,100.09x = 1,104,003.83
5. Step 5: Solve for x
   x = 1,104,003.83/1,100.09
6. Step 6: Final answer
   x = 1,003.56