Step 1:
The first step to converting 3772.1577821567 to a fraction is to re-write 3772.1577821567 in the form p/q where p and q are both positive integers. To start with, 3772.1577821567 can be written as simply 3772.1577821567/1 to technically be written as a fraction.
Step 2:
Next, we will count the number of fractional digits after the decimal point in 3772.1577821567, which in this case is 10. For however many digits after the decimal point there are, we will multiply the numerator and denominator of 3772.1577821567/1 each by 10 to the power of that many digits. So, in this case, we will multiply the numerator and denominator of 3772.1577821567/1 each by 10000000000:
Step 3:
Now the last step is to simplify the fraction (if possible) by finding similar factors and cancelling them out, which leads to the following answer for 3772.1577821567 as a fraction:
71671/19 / 1