4. (3 points) The rules of a musical instrument competition stipulate: The preliminary round is divided into four rounds, and the average score of the four rounds must be no less than 96 to advance to the final. Xiao Guang's scores in the first three rounds are $95$, $97$, and $94$. Therefore, to advance to the final, his score in the fourth round must be at least $\qquad$ points.
【Analysis】To ensure the average score of four rounds is no less than 96 points, the total score should reach $96 \times 4=384$ points. Subtracting the scores of the first three rounds from this total will give the answer.

【Solution】Solution: $96 \times 4$ - 95 - 97 - 94,
$$
\begin{array}{l}
=384-95-97-94, \\
=98 \text { (points); }
\end{array}
$$

Answer: The score in the fourth round must be at least 98 points.