CREATE TABLE table_name_56 (round_4 INT, score VARCHAR, year VARCHAR)

What is the highest score in round 4 and total of 284 in a year more recent than 1998?
SELECT MAX(round_4) FROM table_name_56 WHERE score = 284 AND year > 1998
SELECT MAX("round_4") FROM "table_name_56" WHERE "score" = 284 AND "year" > 1998