Answer
$V_1 = V_2$
Work Step by Step
In the Review & Summary on page 708, the text states: "An excess charge placed on a conductor will, in the equilibrium state, be located entirely on the outer surface of the conductor.The charge will distribute itself so that the following occur: (1) The entire conductor, including interior points, is at a uniform potential."
According to the statement in the summary, the charge will distribute itself so the entire conductor is at a uniform potential.
Therefore, $V_1 = V_2$