Finding the Fourth Proportional to 1,292.82, 1,938.62 and 676.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,292.82 : 1,938.62 = 676.42 : x
2. Step 2: Convert to fraction form
   1,292.82/1,938.62 = 676.42/x
3. Step 3: Cross multiply
   1,292.82x = 1,938.62 × 676.42
4. Step 4: Simplify right side
   1,292.82x = 1,311,321.34
5. Step 5: Solve for x
   x = 1,311,321.34/1,292.82
6. Step 6: Final answer
   x = 1,014.31