To convert 1400 meters to feet, you can use the conversion factor 1 meter is equal to 3.28084 feet.
Here is the step-by-step instruction on how to convert the unit of weight value:
1. Write down the given value that you want to convert. In this case, it is 1400 meters.
2. Write down the conversion factor that relates meters to feet. 1 meter = 3.28084 feet.
3. Set up the conversion factor as a fraction, with the given value on top and the conversion factor on the bottom. It should look like this: 1400 meters * (3.28084 feet / 1 meter).
4. Multiply the given value by the conversion factor. In this case, it would be 1400 * 3.28084 = 4591.176 feet.
5. Round the answer to an appropriate number of significant figures. In this case, the answer would be approximately 4591 feet.
Therefore, 1400 meters is equal to approximately 4591 feet.