Marcia observed the following cash flow series $($in $$1000$ units$)$ in an accounting report at work. The actual amounts in years $1$ and $4$

are missing; however, the report states that the present worth in year $0$ was $$328,000$ at an interest rate of $11\mathrm{.}00\%$ per year. Calculate

the value of $x.($Enter your answer in thousands of dollars.$)$

The value of $x$ is determined to be $