Finding the Fourth Proportional to 3,648.91, 5,033.68 and 2,156.10

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.91 : 5,033.68 = 2,156.10 : x
2. Step 2: Convert to fraction form
   3,648.91/5,033.68 = 2,156.10/x
3. Step 3: Cross multiply
   3,648.91x = 5,033.68 × 2,156.10
4. Step 4: Simplify right side
   3,648.91x = 10,853,117.45
5. Step 5: Solve for x
   x = 10,853,117.45/3,648.91
6. Step 6: Final answer
   x = 2,974.35