This is the 12309th most frequent Russian word.
итогового
Final or cumulative.
Here, "итогового" qualifies "экзамена" to indicate that the exam is final or concluding.
Результаты итогового экзамена были опубликованы вчера.
The results of the final exam were published yesterday.
In this sentence, "итогового" modifies "проекта" to denote that the project is the final one, summarizing or concluding the course.
Для завершения курса требуется выполнение итогового проекта.
To complete the course, the final project must be completed.
"Итогового" here describes "решения", characterizing it as the concluding or ultimate decision in the process.