The Zero Power Rule of Integer Exponents states that any non-zero number raised to the power of zero is equal to one. Therefore, using this rule:
\[ (-1.478)^0 = 1 \]
Now you can substitute this back into the expression:
\[ 2.3 + (-1.478)^0 = 2.3 + 1 \]
Now, perform the addition:
\[ 2.3 + 1 = 3.3 \]
So, the final answer is:
\[ \boxed{3.3} \]