Finding the Fourth Proportional to 1,616.56, 2,423.22 and 793.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.56 : 2,423.22 = 793.60 : x
2. Step 2: Convert to fraction form
   1,616.56/2,423.22 = 793.60/x
3. Step 3: Cross multiply
   1,616.56x = 2,423.22 × 793.60
4. Step 4: Simplify right side
   1,616.56x = 1,923,067.39
5. Step 5: Solve for x
   x = 1,923,067.39/1,616.56
6. Step 6: Final answer
   x = 1,189.60