Finding the Fourth Proportional to 1,356.05, 1,871.11 and 758.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.05 : 1,871.11 = 758.56 : x
2. Step 2: Convert to fraction form
   1,356.05/1,871.11 = 758.56/x
3. Step 3: Cross multiply
   1,356.05x = 1,871.11 × 758.56
4. Step 4: Simplify right side
   1,356.05x = 1,419,336.05
5. Step 5: Solve for x
   x = 1,419,336.05/1,356.05
6. Step 6: Final answer
   x = 1,046.67