Finding the Fourth Proportional to 2,709.54, 4,064.56 and 761.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,709.54 : 4,064.56 = 761.73 : x
2. Step 2: Convert to fraction form
   2,709.54/4,064.56 = 761.73/x
3. Step 3: Cross multiply
   2,709.54x = 4,064.56 × 761.73
4. Step 4: Simplify right side
   2,709.54x = 3,096,097.29
5. Step 5: Solve for x
   x = 3,096,097.29/2,709.54
6. Step 6: Final answer
   x = 1,142.67