Finding the Fourth Proportional to 2,271.30, 3,406.01 and 710.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,271.30 : 3,406.01 = 710.78 : x
2. Step 2: Convert to fraction form
   2,271.30/3,406.01 = 710.78/x
3. Step 3: Cross multiply
   2,271.30x = 3,406.01 × 710.78
4. Step 4: Simplify right side
   2,271.30x = 2,420,923.79
5. Step 5: Solve for x
   x = 2,420,923.79/2,271.30
6. Step 6: Final answer
   x = 1,065.88