Finding the Fourth Proportional to 1,451.69, 2,003.35 and 822.23

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.69 : 2,003.35 = 822.23 : x
2. Step 2: Convert to fraction form
   1,451.69/2,003.35 = 822.23/x
3. Step 3: Cross multiply
   1,451.69x = 2,003.35 × 822.23
4. Step 4: Simplify right side
   1,451.69x = 1,647,202.40
5. Step 5: Solve for x
   x = 1,647,202.40/1,451.69
6. Step 6: Final answer
   x = 1,134.68