Finding the Fourth Proportional to 1,849.43, 2,772.43 and 679.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,849.43 : 2,772.43 = 679.15 : x
2. Step 2: Convert to fraction form
   1,849.43/2,772.43 = 679.15/x
3. Step 3: Cross multiply
   1,849.43x = 2,772.43 × 679.15
4. Step 4: Simplify right side
   1,849.43x = 1,882,897.60
5. Step 5: Solve for x
   x = 1,882,897.60/1,849.43
6. Step 6: Final answer
   x = 1,018.09