Finding the Fourth Proportional to 1,071.34, 1,478.46 and 605.60

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.34 : 1,478.46 = 605.60 : x
2. Step 2: Convert to fraction form
   1,071.34/1,478.46 = 605.60/x
3. Step 3: Cross multiply
   1,071.34x = 1,478.46 × 605.60
4. Step 4: Simplify right side
   1,071.34x = 895,355.38
5. Step 5: Solve for x
   x = 895,355.38/1,071.34
6. Step 6: Final answer
   x = 835.73