1. Convert 1 1/2 teaspoons to grams using the conversion 1 teaspoon = 4.93 grams.
1.5 \text{ teaspoons} \times 4.93 \frac{\text{grams}}{\text{teaspoon}} = 7.395 \text{ grams}
2. Determine the cost per gram of salt.
\frac{0.74}{737} = 0.00100407 \text{ dollars per gram}
3. Calculate the cost for 7.395 grams.
7.395 \text{ grams} \times 0.00100407 \text{ dollars per gram} = 0.007426 \text{ dollars}
4. Approximate to the necessary precision.
The cost is approximately: 0.00361