Finding the Fourth Proportional to 2,123.02, 3,184.50 and 662.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.02 : 3,184.50 = 662.20 : x
2. Step 2: Convert to fraction form
   2,123.02/3,184.50 = 662.20/x
3. Step 3: Cross multiply
   2,123.02x = 3,184.50 × 662.20
4. Step 4: Simplify right side
   2,123.02x = 2,108,775.90
5. Step 5: Solve for x
   x = 2,108,775.90/2,123.02
6. Step 6: Final answer
   x = 993.29