Finding the Fourth Proportional to 2,123.42, 3,185.24 and 662.49

Step by Step Solution

1. Step 1: Write the proportion equation
   2,123.42 : 3,185.24 = 662.49 : x
2. Step 2: Convert to fraction form
   2,123.42/3,185.24 = 662.49/x
3. Step 3: Cross multiply
   2,123.42x = 3,185.24 × 662.49
4. Step 4: Simplify right side
   2,123.42x = 2,110,186.34
5. Step 5: Solve for x
   x = 2,110,186.34/2,123.42
6. Step 6: Final answer
   x = 993.77