Finding the Fourth Proportional to 1,072.71, 1,480.37 and 606.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072.71 : 1,480.37 = 606.96 : x
2. Step 2: Convert to fraction form
   1,072.71/1,480.37 = 606.96/x
3. Step 3: Cross multiply
   1,072.71x = 1,480.37 × 606.96
4. Step 4: Simplify right side
   1,072.71x = 898,522.34
5. Step 5: Solve for x
   x = 898,522.34/1,072.71
6. Step 6: Final answer
   x = 837.62