Finding the Fourth Proportional to 1,616.29, 2,229.82 and 1,173.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,616.29 : 2,229.82 = 1,173.22 : x
2. Step 2: Convert to fraction form
   1,616.29/2,229.82 = 1,173.22/x
3. Step 3: Cross multiply
   1,616.29x = 2,229.82 × 1,173.22
4. Step 4: Simplify right side
   1,616.29x = 2,616,060.91
5. Step 5: Solve for x
   x = 2,616,060.91/1,616.29
6. Step 6: Final answer
   x = 1,618.56