Question 1186687
Here's how to solve this problem:

1. **Write down the given information:**
   * Demand curve: p = 4000^(3-q)
   * Price (p) = $256.60

2. **Substitute the price into the demand equation:**
   256.60 = 4000^(3-q)

3. **Solve for q:**
   This equation is easiest to solve using logarithms.  Let's take the logarithm (base 10 is easiest) of both sides:

   log(256.60) = log(4000^(3-q))
   log(256.60) = (3-q) * log(4000)

   Now, isolate (3-q):
   (3-q) = log(256.60) / log(4000)
   (3-q) ≈ 2.4093 / 3.6021
   (3-q) ≈ 0.6688

   Solve for q:
   q = 3 - 0.6688
   q ≈ 2.3312

4. **Interpret the result:**
   q represents the quantity in *thousands* of swivel chairs.  Therefore, the quantity demanded is approximately 2,331 swivel chairs.