Finding the Fourth Proportional to 1,942.91, 2,912.72 and 773.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,942.91 : 2,912.72 = 773.73 : x
2. Step 2: Convert to fraction form
   1,942.91/2,912.72 = 773.73/x
3. Step 3: Cross multiply
   1,942.91x = 2,912.72 × 773.73
4. Step 4: Simplify right side
   1,942.91x = 2,253,654.98
5. Step 5: Solve for x
   x = 2,253,654.98/1,942.91
6. Step 6: Final answer
   x = 1,159.94