Finding the Fourth Proportional to 3,932.21, 5,891.33 and 2,084.60

Step by Step Solution

1. Step 1: Write the proportion equation
   3,932.21 : 5,891.33 = 2,084.60 : x
2. Step 2: Convert to fraction form
   3,932.21/5,891.33 = 2,084.60/x
3. Step 3: Cross multiply
   3,932.21x = 5,891.33 × 2,084.60
4. Step 4: Simplify right side
   3,932.21x = 12,281,086.46
5. Step 5: Solve for x
   x = 12,281,086.46/3,932.21
6. Step 6: Final answer
   x = 3,123.20