Finding the Fourth Proportional to 1,071.33, 1,478.40 and 605.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,071.33 : 1,478.40 = 605.59 : x
2. Step 2: Convert to fraction form
   1,071.33/1,478.40 = 605.59/x
3. Step 3: Cross multiply
   1,071.33x = 1,478.40 × 605.59
4. Step 4: Simplify right side
   1,071.33x = 895,301.23
5. Step 5: Solve for x
   x = 895,301.23/1,071.33
6. Step 6: Final answer
   x = 835.69