Below is the list of tables from the database along with their columns and datatype. Need to generate an accurate SQL query for the question.
Only use the columns present in the respective table. Only use the columns which are required to generate the SQL query. Only use table joins if required and not otherwise.

### Tables ###
TABLE: CREATE TABLE table_67122 ( "Year" real, "Tournament" text, "Round 1" real, "Round 2" real, "Round 3" real, "Round 4" real, "Score" real, "To par" text, "Place" text, "Money (\uffe5)" real )

### Question ###
What is the highest score in round 4 and total of 284 in a year more recent than 1998?

### Accurate SQL ###

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