Finding the Fourth Proportional to 2,146.92, 2,962.67 and 1,215.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.92 : 2,962.67 = 1,215.42 : x
2. Step 2: Convert to fraction form
   2,146.92/2,962.67 = 1,215.42/x
3. Step 3: Cross multiply
   2,146.92x = 2,962.67 × 1,215.42
4. Step 4: Simplify right side
   2,146.92x = 3,600,882.29
5. Step 5: Solve for x
   x = 3,600,882.29/2,146.92
6. Step 6: Final answer
   x = 1,677.23