√4 = 2
√6 = approximately 2.45
π = 3.14

Now we substitute the values in the expression:

2 + 2.45*3.14 + $45+67$ - $26+78$ = 2 + 7.683 + 112 - 104
= 9.683 + 112 - 104
= 117.683 - 104
= 13.683

Therefore, the value of the expression is approximately 13.683.