Finding the resultant force using a vector polygon diagram

[Bolter]

Homework Statement

See below

Relevant Equations

None

Hi I made an attempt at this problem but have got the wrong answer

The correct answer is actually resultant force = 21.767 N at 61.34 degrees (or 151.34 degrees bearing), but I don't know how they got that?

Any help would be appreciated! Thanks

 

[Lnewqban]

Are you including F1?

 

[Bolter]

Are you including F1?

Oops, I initially thought the Q wanted me to solely focus on force F2 and F3 and ignore F1. I think I got the answer now when taking F1 into account

I got resultant force to be 21.82N at angle 61.30 degrees, which is slightly different from the correct answer given. But I thinks it's because of rounded values.