Finding the Fourth Proportional to 2,064.94, 3,097.09 and 678.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,064.94 : 3,097.09 = 678.42 : x
2. Step 2: Convert to fraction form
   2,064.94/3,097.09 = 678.42/x
3. Step 3: Cross multiply
   2,064.94x = 3,097.09 × 678.42
4. Step 4: Simplify right side
   2,064.94x = 2,101,127.80
5. Step 5: Solve for x
   x = 2,101,127.80/2,064.94
6. Step 6: Final answer
   x = 1,017.52