Finding the Fourth Proportional to 1,323.09, 1,826.22 and 825.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.09 : 1,826.22 = 825.43 : x
2. Step 2: Convert to fraction form
   1,323.09/1,826.22 = 825.43/x
3. Step 3: Cross multiply
   1,323.09x = 1,826.22 × 825.43
4. Step 4: Simplify right side
   1,323.09x = 1,507,410.15
5. Step 5: Solve for x
   x = 1,507,410.15/1,323.09
6. Step 6: Final answer
   x = 1,139.31