Finding the Fourth Proportional to 1,046.39, 1,568.61 and 558.95

Step by Step Solution

1. Step 1: Write the proportion equation
   1,046.39 : 1,568.61 = 558.95 : x
2. Step 2: Convert to fraction form
   1,046.39/1,568.61 = 558.95/x
3. Step 3: Cross multiply
   1,046.39x = 1,568.61 × 558.95
4. Step 4: Simplify right side
   1,046.39x = 876,766.72
5. Step 5: Solve for x
   x = 876,766.72/1,046.39
6. Step 6: Final answer
   x = 837.90