Finding the Fourth Proportional to 1,618.78, 2,426.49 and 849.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,618.78 : 2,426.49 = 849.82 : x
2. Step 2: Convert to fraction form
   1,618.78/2,426.49 = 849.82/x
3. Step 3: Cross multiply
   1,618.78x = 2,426.49 × 849.82
4. Step 4: Simplify right side
   1,618.78x = 2,062,079.73
5. Step 5: Solve for x
   x = 2,062,079.73/1,618.78
6. Step 6: Final answer
   x = 1,273.85