Multiply rectangles as shown by the dashed lines, then choose an auxiliary vanishing point anywhere on the horizon line
Note: blue points are interactive

Draw a line through VP (aux) and D and intersect it with a line parallel to the horizon line and mark off point Q

1. Intersect lines through VP (aux) and F/N/M with the green line
2. Choose a point O on the line segment FD and draw a line segment OD_{1} parallel to ED, then intersect a line through VP (aux) and O with the green line and mark off point S

1. Measure distance between S and Q, call it d. Plot points W and V at distance d to the left of T and U respectively
2. Intersect lines through VP (aux) and W/V with DM and mark off points Z/A_{1}, draw line segment ZC_{1} and A_{1}B_{1} parallel to DE

1. Draw a line through VP1 perpendicular to the horizon line called vanishing line
2. Extend diagonals DD_{1}, FC_{1}, NB_{1 }(pink) and DG, FJ, NL (blue) and notice they converge on the vanishing line, which means we could have used points on the vanishing lines for proportional division of the rectangles