Finding the Fourth Proportional to 2,155.22, 2,974.22 and 1,408.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,155.22 : 2,974.22 = 1,408.73 : x
2. Step 2: Convert to fraction form
   2,155.22/2,974.22 = 1,408.73/x
3. Step 3: Cross multiply
   2,155.22x = 2,974.22 × 1,408.73
4. Step 4: Simplify right side
   2,155.22x = 4,189,851.03
5. Step 5: Solve for x
   x = 4,189,851.03/2,155.22
6. Step 6: Final answer
   x = 1,944.05