The steps to construct a △XYZ, in which XY=4.5 centimeters, ∠X=100∘, and ∠Y=50∘ is given below. Choose the correct order of the steps.
1. Construct a line segment XP such that ∠PXY=100∘.
2. Locate points X and Y on it such that XY=4.5 cm.
3. Draw a line segment that is sufficiently long using a ruler.
4. Extend XP and YQ to intersect at Z.
5. Construct a line segment YQ such that ∠XYQ=50∘.