CREATE TABLE table_61268 ("Episode" TEXT, "Air date" TEXT, "Official ITV1 rating" FLOAT, "Weekly rank" TEXT, "Share" TEXT)

What is the Official ITV1 rating for auditions 4?
SELECT "Official ITV1 rating" FROM table_61268 WHERE "Episode" = 'auditions 4'
SELECT "Official ITV1 rating" FROM "table_61268" WHERE "Episode" = 'auditions 4'