Words ending with -tion, -sion, and -ic are stressed on the penultimate syllable which is the second from end syllable.
So the stress in the word procrastination is on NA.
pro-cras-ti-NA-tion
Other words that you may also consider having the stress on the second from end syllable ending with -tion, -sion, and -ic are:
Demographic
Dimension
Estimation
