Finding the Fourth Proportional to 1,323.37, 1,826.10 and 857.62

Step by Step Solution

1. Step 1: Write the proportion equation
   1,323.37 : 1,826.10 = 857.62 : x
2. Step 2: Convert to fraction form
   1,323.37/1,826.10 = 857.62/x
3. Step 3: Cross multiply
   1,323.37x = 1,826.10 × 857.62
4. Step 4: Simplify right side
   1,323.37x = 1,566,099.88
5. Step 5: Solve for x
   x = 1,566,099.88/1,323.37
6. Step 6: Final answer
   x = 1,183.42