Please help me find the missing number in this sequence

Question

8, 28, 147, ___, 9280

a brief explanation would be appreciated! thank you!

Answer 1

the pattern is a one digit number

two digit number

three digit number

? 4 digit number?

four digit number but almost 5 digits

? is somewhere between 3 and 4 digit number, closer to 4 digits

maybe close to 999 or 1000, as a "3.5" digit number, give or take a few numbers

my guess is 1176, give or take a little