Finding the Fourth Proportional to 1,324.72, 1,828.28 and 800.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,324.72 : 1,828.28 = 800.72 : x
2. Step 2: Convert to fraction form
   1,324.72/1,828.28 = 800.72/x
3. Step 3: Cross multiply
   1,324.72x = 1,828.28 × 800.72
4. Step 4: Simplify right side
   1,324.72x = 1,463,940.36
5. Step 5: Solve for x
   x = 1,463,940.36/1,324.72
6. Step 6: Final answer
   x = 1,105.09