Answer:
$836.16
Step-by-step explanation:
The seller was the owner of the property until August 6th, which represents the first 218 days of the year. That means that the seller is responsible for paying (218/365) x $1,400 = 0.5972 x 365 = $836.16
The term paid in arrears means that the taxes are paid at the end of the period. In this case the taxes have to be paid by the end of the year.