Finding the Fourth Proportional to 1,047.27, 1,445.37 and 605.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,047.27 : 1,445.37 = 605.31 : x
2. Step 2: Convert to fraction form
   1,047.27/1,445.37 = 605.31/x
3. Step 3: Cross multiply
   1,047.27x = 1,445.37 × 605.31
4. Step 4: Simplify right side
   1,047.27x = 874,896.91
5. Step 5: Solve for x
   x = 874,896.91/1,047.27
6. Step 6: Final answer
   x = 835.41