Answer: The next term in the sequence is 5.
Step-by-step explanation: We are given to find the next term in the following sequence :
1.31, 2.54, 3.77, . . . .
We can see the following pattern in the consecutive terms of the given sequence :

Therefore, the next term in the given sequence will be the last given term plus 1.23.
That is, the next term will be

Thus, the next term in the sequence is 5.