Finding the Fourth Proportional to 1,328.82, 1,833.76 and 731.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,328.82 : 1,833.76 = 731.30 : x
2. Step 2: Convert to fraction form
   1,328.82/1,833.76 = 731.30/x
3. Step 3: Cross multiply
   1,328.82x = 1,833.76 × 731.30
4. Step 4: Simplify right side
   1,328.82x = 1,341,028.69
5. Step 5: Solve for x
   x = 1,341,028.69/1,328.82
6. Step 6: Final answer
   x = 1,009.19