Finding the Fourth Proportional to 1,485.41, 2,049.78 and 822.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,485.41 : 2,049.78 = 822.22 : x
2. Step 2: Convert to fraction form
   1,485.41/2,049.78 = 822.22/x
3. Step 3: Cross multiply
   1,485.41x = 2,049.78 × 822.22
4. Step 4: Simplify right side
   1,485.41x = 1,685,379.60
5. Step 5: Solve for x
   x = 1,685,379.60/1,485.41
6. Step 6: Final answer
   x = 1,134.62