Finding the Fourth Proportional to 1,189.83, 1,786.82 and 730.32

Step by Step Solution

1. Step 1: Write the proportion equation
   1,189.83 : 1,786.82 = 730.32 : x
2. Step 2: Convert to fraction form
   1,189.83/1,786.82 = 730.32/x
3. Step 3: Cross multiply
   1,189.83x = 1,786.82 × 730.32
4. Step 4: Simplify right side
   1,189.83x = 1,304,940.03
5. Step 5: Solve for x
   x = 1,304,940.03/1,189.83
6. Step 6: Final answer
   x = 1,096.74