calculate diluted earning per share the answer is 3.78 but how that come?

Crane Corporation issued $5 million of 10-year, 6% callable convertible subordinated debentures on January 2,2023. The debentures have a face value of $1,000, with interest payable annually. The current conversion ratio is 14:1, and in two years it will increase to 18:1. At the date of issue, the bonds were sold at 100 to yield a 6% effective interest rate. The bond discount is amortized using the effective interest method. Crane's effective tax rate was 35%. Net income in 2023 was $7.7 million, and the company had 2 million shares outstanding during the entire year. For simplicity, ignore the requirement to record the debentures' debt and equity components separately