Finance lease

Please help me to verify this problem about finance lease:
1/1/x1: enter lease agreement
deposit: 1.150 ( non refundable)
installments: 4.000 pa/7 years in arrears
cash price: 20.000
interest rate:11%
uselfull life: 4 year

prepare: P&L/ BS
answer:
PL:
– dep: 20.000/4= 50.000
– finance lease: (20.000-1.150)*11%=2.074
BS:
– non current liability: 14.786
– current liability: 2.138
–> total liability= 16.924
– assest held under finance lease: (20.000-5.000)=15.000
—> total asset: 15.000
—-> why for this transaction asset not equal liability???

I was wonder about this issue, plz help me to figure it out.
Regards,