Finding the Fourth Proportional to 3,966.42, 5,473.59 and 2,287.83

Step by Step Solution

1. Step 1: Write the proportion equation
   3,966.42 : 5,473.59 = 2,287.83 : x
2. Step 2: Convert to fraction form
   3,966.42/5,473.59 = 2,287.83/x
3. Step 3: Cross multiply
   3,966.42x = 5,473.59 × 2,287.83
4. Step 4: Simplify right side
   3,966.42x = 12,522,643.41
5. Step 5: Solve for x
   x = 12,522,643.41/3,966.42
6. Step 6: Final answer
   x = 3,157.17