Finding the Fourth Proportional to 2,142.62, 2,951.52 and 1,826.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,142.62 : 2,951.52 = 1,826.85 : x
2. Step 2: Convert to fraction form
   2,142.62/2,951.52 = 1,826.85/x
3. Step 3: Cross multiply
   2,142.62x = 2,951.52 × 1,826.85
4. Step 4: Simplify right side
   2,142.62x = 5,391,984.31
5. Step 5: Solve for x
   x = 5,391,984.31/2,142.62
6. Step 6: Final answer
   x = 2,516.54