Finding the Fourth Proportional to 2,986.52, 4,122.23 and 1,866.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,986.52 : 4,122.23 = 1,866.83 : x
2. Step 2: Convert to fraction form
   2,986.52/4,122.23 = 1,866.83/x
3. Step 3: Cross multiply
   2,986.52x = 4,122.23 × 1,866.83
4. Step 4: Simplify right side
   2,986.52x = 7,695,472.69
5. Step 5: Solve for x
   x = 7,695,472.69/2,986.52
6. Step 6: Final answer
   x = 2,576.74