we know that
[tex]1\ yard=3 \ feet[/tex]
so
by proportion
Convert [tex]3,645\ feet[/tex] to yards
[tex]\frac{1}{3} \frac{yard}{feet} =\frac{x}{3,645} \frac{yards}{feet} \\ \\x=3,645/3 \\ \\x=1,215\ yards[/tex]
therefore
the answer is
[tex]1,215\ yards[/tex]
