If 1, 2, 4, 1, x, 6 and 3, 5 are the vertices of a parallelogram taken in order find X and Y

If 1, 2, 4, 1, x, 6 and 3, 5 are the vertices of a parallelogram taken

1.	If 1, 2, 4, 1, x, 6 and 3, 5 are the vertices of a parallelogram taken in order find X and Y
Answer» Same here question clearly likho bhn Apply the formula (x1+x3)-x2=x4 Yur question is nt clear Isme Y Kahan hai aur vertices kuch samajh me nhi aa rha??????