Sentence Correction

Hi All,

How to use the Idiom "Even"

In MGMAT,
I could see that

RIGHT:
I am EVEN RICHER THAN a prince.
I earn AS MUCH money AS EVEN the wealthiest king.

WRONG:
I am RICHER EVEN THAN a prince.
I earn EVEN AS MUCH money As the wealthiest king.

I am not able to differentiate between RIGHT and WRONG. Could any one explain is there any way or strategy on how to use or not to use.

Thanks in advance.
Regards,
Uva.