Finding the Fourth Proportional to 1,078.92, 1,488.98 and 606.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.92 : 1,488.98 = 606.79 : x
2. Step 2: Convert to fraction form
   1,078.92/1,488.98 = 606.79/x
3. Step 3: Cross multiply
   1,078.92x = 1,488.98 × 606.79
4. Step 4: Simplify right side
   1,078.92x = 903,501.55
5. Step 5: Solve for x
   x = 903,501.55/1,078.92
6. Step 6: Final answer
   x = 837.41