Finding the Fourth Proportional to 1,078.62, 1,488.33 and 606.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.62 : 1,488.33 = 606.51 : x
2. Step 2: Convert to fraction form
   1,078.62/1,488.33 = 606.51/x
3. Step 3: Cross multiply
   1,078.62x = 1,488.33 × 606.51
4. Step 4: Simplify right side
   1,078.62x = 902,687.03
5. Step 5: Solve for x
   x = 902,687.03/1,078.62
6. Step 6: Final answer
   x = 836.89