$ 3.157161668775
Actual Live Data:
SD/STEEM = 1.1575365419814 SD
BTC/STEEM = 0.00044902 BTC
USD/BTC = $8138.9025
Calculation & Formula:
1 SD = 0.86390361231126 STEEM
0.86390361231126 STEEM * 0.00044902 BTC = 0.00038791 BTC
0.00038791 BTC * 8138.9025 USD = $ 3.157161668775