Finding the Fourth Proportional to 1,408.70, 1,944.49 and 819.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.70 : 1,944.49 = 819.42 : x
2. Step 2: Convert to fraction form
   1,408.70/1,944.49 = 819.42/x
3. Step 3: Cross multiply
   1,408.70x = 1,944.49 × 819.42
4. Step 4: Simplify right side
   1,408.70x = 1,593,354.00
5. Step 5: Solve for x
   x = 1,593,354.00/1,408.70
6. Step 6: Final answer
   x = 1,131.08