Finding the Fourth Proportional to 1,072.50, 1,480.04 and 606.75

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072.50 : 1,480.04 = 606.75 : x
2. Step 2: Convert to fraction form
   1,072.50/1,480.04 = 606.75/x
3. Step 3: Cross multiply
   1,072.50x = 1,480.04 × 606.75
4. Step 4: Simplify right side
   1,072.50x = 898,014.27
5. Step 5: Solve for x
   x = 898,014.27/1,072.50
6. Step 6: Final answer
   x = 837.31