Finding the Fourth Proportional to 3,983.69, 5,497.56 and 2,191.37

Step by Step Solution

1. Step 1: Write the proportion equation
   3,983.69 : 5,497.56 = 2,191.37 : x
2. Step 2: Convert to fraction form
   3,983.69/5,497.56 = 2,191.37/x
3. Step 3: Cross multiply
   3,983.69x = 5,497.56 × 2,191.37
4. Step 4: Simplify right side
   3,983.69x = 12,047,160.57
5. Step 5: Solve for x
   x = 12,047,160.57/3,983.69
6. Step 6: Final answer
   x = 3,024.12