CREATE TABLE table_41666 ("Week" FLOAT, "Date" TEXT, "Opponent" TEXT, "Result" TEXT, "Attendance" FLOAT)

What was the total attendance at a game against the Pittsburgh Steelers before week 4?
SELECT COUNT("Attendance") FROM table_41666 WHERE "Opponent" = 'pittsburgh steelers' AND "Week" < '4'
SELECT COUNT("Attendance") FROM "table_41666" WHERE "Opponent" = 'pittsburgh steelers' AND "Week" < '4'