Finding the Fourth Proportional to 1,200.52, 1,658.28 and 886.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,200.52 : 1,658.28 = 886.42 : x
2. Step 2: Convert to fraction form
   1,200.52/1,658.28 = 886.42/x
3. Step 3: Cross multiply
   1,200.52x = 1,658.28 × 886.42
4. Step 4: Simplify right side
   1,200.52x = 1,469,932.56
5. Step 5: Solve for x
   x = 1,469,932.56/1,200.52
6. Step 6: Final answer
   x = 1,224.41