Final answer:
Missoula is the second-largest city in Montana, followed by Great Falls as the third and Bozeman as the fourth.
Step-by-step explanation:
The state that has Missoula as the second biggest city, Great Falls as the third, and Bozeman as the fourth is Montana.
Montana is known for its diverse terrain ranging from the Rocky Mountains to the Great Plains. Its largest city is Billings, with Missoula coming in as the second-largest by population followed by Great Falls and Bozeman respectively.
Each of these cities offers unique cultural and historical attractions, as well as access to the state's renowned natural landscapes.