Finding the Fourth Proportional to 1,072.25, 1,479.91 and 606.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072.25 : 1,479.91 = 606.50 : x
2. Step 2: Convert to fraction form
   1,072.25/1,479.91 = 606.50/x
3. Step 3: Cross multiply
   1,072.25x = 1,479.91 × 606.50
4. Step 4: Simplify right side
   1,072.25x = 897,565.42
5. Step 5: Solve for x
   x = 897,565.42/1,072.25
6. Step 6: Final answer
   x = 837.09