Write a program that asks the user for their last three test scores and their goal test score for the next test. Then print out the student's current average, as well as their average if they achieve their goal test score.

For example, if the student's input looks like this:

Please enter your first test score: $90$

Please enter your second test score: $90$

Please enter your third test score: $90$

Please enter your goal test score: $100$

Your program should output:

Your current average is: $90$

If you achieve your goal score of $100,$ your average will $k$

Ensure that your output matches the sample output exactly, including spaces.