Finding the Fourth Proportional to 1,078.53, 1,488.38 and 606.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,078.53 : 1,488.38 = 606.43 : x
2. Step 2: Convert to fraction form
   1,078.53/1,488.38 = 606.43/x
3. Step 3: Cross multiply
   1,078.53x = 1,488.38 × 606.43
4. Step 4: Simplify right side
   1,078.53x = 902,598.28
5. Step 5: Solve for x
   x = 902,598.28/1,078.53
6. Step 6: Final answer
   x = 836.88