Finding the Fourth Proportional to 2,016.81, 2,780.87 and 1,596.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,016.81 : 2,780.87 = 1,596.33 : x
2. Step 2: Convert to fraction form
   2,016.81/2,780.87 = 1,596.33/x
3. Step 3: Cross multiply
   2,016.81x = 2,780.87 × 1,596.33
4. Step 4: Simplify right side
   2,016.81x = 4,439,178.23
5. Step 5: Solve for x
   x = 4,439,178.23/2,016.81
6. Step 6: Final answer
   x = 2,201.09