Finding the Fourth Proportional to 1,550.42, 2,329.89 and 820.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,550.42 : 2,329.89 = 820.52 : x
2. Step 2: Convert to fraction form
   1,550.42/2,329.89 = 820.52/x
3. Step 3: Cross multiply
   1,550.42x = 2,329.89 × 820.52
4. Step 4: Simplify right side
   1,550.42x = 1,911,709.69
5. Step 5: Solve for x
   x = 1,911,709.69/1,550.42
6. Step 6: Final answer
   x = 1,233.02