To write a number in scientific notation, first write a decimal point in the number so that there is only one digit to the left of the decimal point.
4,625 → 4.625
Next, we need to count how many places the decimal point would need to move to get back to the original number.
4.625 → 4,625.
Therefore, 4,625 turned into scientific notation would be 4.625 × 10³.