Finding the Fourth Proportional to 2,142.18, 2,952.72 and 1,896.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.18 : 2,952.72 = 1,896.12 : x
2. Step 2: Convert to fraction form
   2,142.18/2,952.72 = 1,896.12/x
3. Step 3: Cross multiply
   2,142.18x = 2,952.72 × 1,896.12
4. Step 4: Simplify right side
   2,142.18x = 5,598,711.45
5. Step 5: Solve for x
   x = 5,598,711.45/2,142.18
6. Step 6: Final answer
   x = 2,613.56