Finding the Fourth Proportional to 1,462.45, 2,192.12 and 681.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,462.45 : 2,192.12 = 681.55 : x
2. Step 2: Convert to fraction form
   1,462.45/2,192.12 = 681.55/x
3. Step 3: Cross multiply
   1,462.45x = 2,192.12 × 681.55
4. Step 4: Simplify right side
   1,462.45x = 1,494,028.43
5. Step 5: Solve for x
   x = 1,494,028.43/1,462.45
6. Step 6: Final answer
   x = 1,021.59