Darien’s education budget would increase 2.98 percent starting in July in the proposal unveiled Thursday night by Interim Superintendent Elliott Landon to the Board of Education. Spending would increase by $2,924,920 to a total of $101,047,186. The budget will now be reviewed by the Board of Education, the Board of Finance and the Representative Town Meeting. Only the Board of Education can adjust the costs of specific items in the budget. “This budget has been developed with an unwavering commitment to provide students with exceptional programs and services while maximizing the economy of resources,” Landon said in his budget message.