CREATE TABLE table_67122 ("Year" FLOAT, "Tournament" TEXT, "Round 1" FLOAT, "Round 2" FLOAT, "Round 3" FLOAT, "Round 4" FLOAT, "Score" FLOAT, "To par" TEXT, "Place" TEXT, "Money  ( \\uffe5 ) " FLOAT)

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_67122 WHERE "Score" = '284' AND "Year" > '1998'
SELECT MAX("Round 4") FROM "table_67122" WHERE "Score" = '284' AND "Year" > '1998'