Solve using $($P$/$A$,$i$\%,$n$)$ and Present Worth $($PW$)$ cashflow.

Find the value of x that makes the equivalent annual worth in years $1$ through $9$ equal to $$600$ per year. Use an interest rate of $8\%$ per year. The cash flows in year $0$ and year $9$ has an unknown value x$,$ and $1$ through $8$ has an annual worth of $$600.$ The value of x is determined to be $