Finding the Fourth Proportional to 2,872.83, 4,306.50 and 923.67

Step by Step Solution

1. Step 1: Write the proportion equation
   2,872.83 : 4,306.50 = 923.67 : x
2. Step 2: Convert to fraction form
   2,872.83/4,306.50 = 923.67/x
3. Step 3: Cross multiply
   2,872.83x = 4,306.50 × 923.67
4. Step 4: Simplify right side
   2,872.83x = 3,977,784.86
5. Step 5: Solve for x
   x = 3,977,784.86/2,872.83
6. Step 6: Final answer
   x = 1,384.62