Monge (Descriptive) Geometry: finding the intersection between a line and a plane

Описание: Let there be a plane (alpha) defined by (e) and (g), two lines. Then, ot find the intersection between (alpha) and a line (d),
1. Move the intersection between d and e on e';
2. Move the intersection between d and g on g';
3. Define i' as the line going by the two aforementioned points.