Ethereum price closed April above $1,800 but had its fourth consecutive month with negative performance.Latest on-chain data suggests Ethereum price is above a crucial support level that could determine its trajectory.Analysts warn that Ethereum may fall to $1,500 if it loses the current support around $1,772 based on cost-basis analysis.If the support level at $1,772 remains unbreached, Ethereum price could reach as high as $2,100 with no significant resistance ahead.