Final answer:
The right of way in a four-way intersection is determined by the 'first come, first served' rule. If multiple vehicles arrive at the same time, the vehicle on the right has the right of way.
Step-by-step explanation:
In a four-way intersection, the right of way typically belongs to the vehicle that arrives first, known as the 'first come, first served' rule. If multiple vehicles arrive at the same time, the right of way is given to the vehicle on the right. This helps maintain order and prevent accidents at intersections.