Finding the Fourth Proportional to 1,323.49, 1,825.94 and 825.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.49 : 1,825.94 = 825.72 : x
2. Step 2: Convert to fraction form
   1,323.49/1,825.94 = 825.72/x
3. Step 3: Cross multiply
   1,323.49x = 1,825.94 × 825.72
4. Step 4: Simplify right side
   1,323.49x = 1,507,711.05
5. Step 5: Solve for x
   x = 1,507,711.05/1,323.49
6. Step 6: Final answer
   x = 1,139.20