Finding the Fourth Proportional to 2,097.78, 3,147.05 and 710.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,097.78 : 3,147.05 = 710.82 : x
2. Step 2: Convert to fraction form
   2,097.78/3,147.05 = 710.82/x
3. Step 3: Cross multiply
   2,097.78x = 3,147.05 × 710.82
4. Step 4: Simplify right side
   2,097.78x = 2,236,982.53
5. Step 5: Solve for x
   x = 2,236,982.53/2,097.78
6. Step 6: Final answer
   x = 1,066.36