Finding the Fourth Proportional to 2,756.50, 4,134.78 and 704.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,756.50 : 4,134.78 = 704.50 : x
2. Step 2: Convert to fraction form
   2,756.50/4,134.78 = 704.50/x
3. Step 3: Cross multiply
   2,756.50x = 4,134.78 × 704.50
4. Step 4: Simplify right side
   2,756.50x = 2,912,952.51
5. Step 5: Solve for x
   x = 2,912,952.51/2,756.50
6. Step 6: Final answer
   x = 1,056.76