Answer: $4,050,000
Step-by-step explanation:
Increase in net worth shows the after tax gain that the person got after the land in question increased in value.
= (Current value - Purchase price) * ( 1 - tax rate)
= (5,500,000 - 1,000,000) * (1 - 10%)
= 4,500,000 * 0.90
= $4,050,000