Finding the Fourth Proportional to 1,408.60, 1,943.82 and 819.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.60 : 1,943.82 = 819.04 : x
2. Step 2: Convert to fraction form
   1,408.60/1,943.82 = 819.04/x
3. Step 3: Cross multiply
   1,408.60x = 1,943.82 × 819.04
4. Step 4: Simplify right side
   1,408.60x = 1,592,066.33
5. Step 5: Solve for x
   x = 1,592,066.33/1,408.60
6. Step 6: Final answer
   x = 1,130.25