Give yourself a pat on the back you did a great job! Jack LaLanne is amazing! I typed in "Lalanne 1000 Push-ups" into my search engine and came up with the above figure from several articles. He has also accomplished 1033 Push-ups in 23 minutes!
I also read that on his 88th birthday he dropped and did 88 Push-ups on his star in Hollywood! He is astonishing!