Finding the Fourth Proportional to 1,791.37, 2,686.04 and 558.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,791.37 : 2,686.04 = 558.42 : x
2. Step 2: Convert to fraction form
   1,791.37/2,686.04 = 558.42/x
3. Step 3: Cross multiply
   1,791.37x = 2,686.04 × 558.42
4. Step 4: Simplify right side
   1,791.37x = 1,499,938.46
5. Step 5: Solve for x
   x = 1,499,938.46/1,791.37
6. Step 6: Final answer
   x = 837.31