Finding the Fourth Proportional to 2,105.24, 3,157.88 and 789.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,105.24 : 3,157.88 = 789.01 : x
2. Step 2: Convert to fraction form
   2,105.24/3,157.88 = 789.01/x
3. Step 3: Cross multiply
   2,105.24x = 3,157.88 × 789.01
4. Step 4: Simplify right side
   2,105.24x = 2,491,587.06
5. Step 5: Solve for x
   x = 2,491,587.06/2,105.24
6. Step 6: Final answer
   x = 1,183.52