Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE table_name_56 (round_4 INTEGER, score VARCHAR, year VARCHAR)
### Question:
What is the highest score in round 4 and total of 284 in a year more recent than 1998?
### Answer:
SELECT MAX(round_4) FROM table_name_56 WHERE score = 284 AND year > 1998