RHEL 7.4 Fail to run full screen in Virtualbox

Good day

I am trying to run RHEL 7.4 in Oracle Virtualbox 5.1.26 but I cannot get it to run in full screen mode.

Based on the terminal output the Virtualbox guest additions seems to install fine, but RHEL 7.4 cannot go above 1024 x 768

I am now at my wits end and would really appreciate some advice as to how to get RHEL 7.4 to run fullscreen.

Thanks in advance Red Hat Heroes.

EDIT: Added Virtualbox log file.