Help me calculate my Uni final degree grade

What grade would I need to achieve in my final (3rd) year to get a first?

Year 1 (weighted 1:3:5)
Coursework (weighted 67.5%) - 62
Essay (Weighted 25%) - 63
Practical (7.5%) - 60
Overall mark = 62

Year 2 (weighted 1:3:5) *predicted
Coursework (weighted 60%) - ~60
Essay (weighted 12.5%) - ~65
Essay (weighted 12.5%) - ~40
Practical (weighted 15%) - ~65

Year 3 (weighted 1:3:5)
Coursework (weighted 30%) - ?
Practical (weighted 45%) - ?
Dissertation (weighted 25%) - ?

The 3 years are weighted 1:3:5. What grade would I need to achieve in my final year to average a first?

So you got 59% average for second year? I think it would be about 79% average for 3rd year. This is handy for figuring out things like this https://unigradecalc.com/

I haven't got my 2nd year grades yet so i only put some 'predicted' grades. If your estimate is to average a 79% in my final year, do you think that is achievable in the arts?