To find the total amount of bricks that Eve purchased, we need to add the amount of bricks for the wall to the amount of bricks for the walkway:
\[ 814.888 \text{ pounds} + 48.22 \text{ pounds} \]
Let's perform the addition:
\[ 814.888 + 48.22 = 863.108 \]
Therefore, the total amount of bricks Eve bought is 863.108 pounds.