First, let's solve the multiplication and division in the equation:

1.75 ÷ 25 = 0.07
0.4 × 1.9 = 0.76

Now, let's substitute these values back into the equation:

2.16 ÷ 2.7 + 0.3 × 1.8 + 0.07 + 0.76

Next, solve the division and multiplication:

2.16 ÷ 2.7 = 0.8
0.3 × 1.8 = 0.54

Finally, add all the values together:

0.8 + 0.54 + 0.07 + 0.76 = 2.17

Therefore, the final answer is 2.17.