Finding the Fourth Proportional to 2,158.11, 3,237.57 and 1,282.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,158.11 : 3,237.57 = 1,282.10 : x
2. Step 2: Convert to fraction form
   2,158.11/3,237.57 = 1,282.10/x
3. Step 3: Cross multiply
   2,158.11x = 3,237.57 × 1,282.10
4. Step 4: Simplify right side
   2,158.11x = 4,150,872.31
5. Step 5: Solve for x
   x = 4,150,872.31/2,158.11
6. Step 6: Final answer
   x = 1,923.38