Answer:
For Ling Co., we have the following transaction recording in their accounting book:
* July 1st 2017 transaction, the journal entry is:
Dr Prepaid Insurance 7,440
Cr Cash 7,440
( to record purchased and paid of 2-year insurance)
* For December 31st 2017, the adjustment transaction relating to Insurance Expenses:
Dr Insurance Expenses 1,860
Cr Prepaid Insurance 1,860
( to record insurance expenses for the second-half of 2017)
Working note: As the insurance is for 2-year, the Insurance expenses for one-year is 7,440/2 = $3,720; subsequently, the Insurance expenses for half-year is 3,720/2 = $1,860. Because as at December 31st 2017, the insurance policy has been passed by 6 months, Insurance expenses is recorded ( Dr) at half-year cost while Prepaid Insurance - an asset account recording Insurance fee paid yet not consumed fully - is Credited by the same amount to show how much Insurance fee has actually incurred.
So, the Asset account is decreased by $1,860 through the December 31st 2019 adjustment.
Explanation: