For SDSU and CSUF, Business is one of the more competitive majors along side Engineering/CS/Bio. The CSU’s use the eligibility index to rank their applicants by major and accept from highest EI down until all the slots are filled.
Based on your CSU GPA and SAT score, your EI is 3840. For SDSU business, you need around a 4000+ EI to be competitive. 3840 should be good for CSUF and SJSU. SJSU is the only Cal state that publishes their EI thresholds yearly, so you can compare your EI to the list below.
You might want to consider Chico State where an EI of 3700+ is good, Sonoma State or CSUN. They all have good Business programs.
http://info.sjsu.edu/web-dbgen/narr/admission/rec-10079.11705.html