Finding the Fourth Proportional to 1,791.89, 2,687.82 and 559.37

Step by Step Solution

1. Step 1: Write the proportion equation
   1,791.89 : 2,687.82 = 559.37 : x
2. Step 2: Convert to fraction form
   1,791.89/2,687.82 = 559.37/x
3. Step 3: Cross multiply
   1,791.89x = 2,687.82 × 559.37
4. Step 4: Simplify right side
   1,791.89x = 1,503,472.43
5. Step 5: Solve for x
   x = 1,503,472.43/1,791.89
6. Step 6: Final answer
   x = 839.05