Your SAT is low for SLO. The average SAT for the College of Liberal Arts where Sociology resides was 1343 last year with an expected 22% acceptance rate. SLO does not publish the average SAT/ACT scores by major.
SLO also uses MCA points instead of eligibility index and 9-11th grades for the GPA calculation. If you want to know how to calculate your MCA points, I can send you a PM.
San Diego state admits by eligibility index and major.
If you took the Redesigned SAT:
(CSU capped weighted GPA X 800) + (SAT Evidence Based Reading & Writing (EBRW) + Math Score) = Eligibility Index
(4.1 x800) + (1180)= 4460 You are competitive for SDSU