Answer:
The Journal entry is as follows:
Construction in progress A/c Dr. $950,000
Cost of construction A/c Dr. $1,600,000
To revenue from long term contracts $2,550,000
(To record the revenue in 2018)
Workings:
Cost of construction:
= cost of 2017 + cost of 2018
= $1,100,000 + $500,000
= $1,600,000