Finding the Fourth Proportional to 1,485.35, 2,049.80 and 822.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.35 : 2,049.80 = 822.27 : x
2. Step 2: Convert to fraction form
   1,485.35/2,049.80 = 822.27/x
3. Step 3: Cross multiply
   1,485.35x = 2,049.80 × 822.27
4. Step 4: Simplify right side
   1,485.35x = 1,685,491.10
5. Step 5: Solve for x
   x = 1,685,491.10/1,485.35
6. Step 6: Final answer
   x = 1,134.74