Final answer:
Roger Sherman helped craft the Great Compromise, which established equal representation for every state in the Senate and proportional representation in the House of Representatives.
Step-by-step explanation:
Roger Sherman of Connecticut played a pivotal role in shaping the legislative structure of the United States through his contribution to the Great Compromise. This compromise ensured that every state, regardless of its population size, would have an equal representation in the Senate. While the House of Representatives would reflect proportional representation based on population, the Senate would uphold equal representation, with each state being allocated two senators.