Hardwood Floor Install Help

^^^^ theres your answer , then extend a chalk line to the final room on the right , set your starter on this line and work back into the bottom of your pic , then pull your starter and go up on your pic in all three rooms at the same time , 1/4 round is for reno's and amateurs it makes your hard work look like that , get into baseboard range and glue the last run that is covered by the base using a good flooring adhesive under it and some gorilla in the groove , even if you have rip a slim piece to get there it will look much better than using 1/4 round .