Finding the Fourth Proportional to 1,451.79, 2,003.54 and 822.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,451.79 : 2,003.54 = 822.35 : x
2. Step 2: Convert to fraction form
   1,451.79/2,003.54 = 822.35/x
3. Step 3: Cross multiply
   1,451.79x = 2,003.54 × 822.35
4. Step 4: Simplify right side
   1,451.79x = 1,647,612.02
5. Step 5: Solve for x
   x = 1,647,612.02/1,451.79
6. Step 6: Final answer
   x = 1,134.88