The article listed the speed of a scud at "1,676 meters/second", "3749.11 mph" was simply a conversion from that unit to MPH.
I can only hope that for the sake of my post that my lack of attention to the increase of perversion of the velocity of the skud missile does not in some way invalidate my claim :P.
https://www.google.com/search?q=1%2C676+meters+per+second+to...