Finding the Fourth Proportional to 1,019.48, 1,406.82 and 605.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.48 : 1,406.82 = 605.48 : x
2. Step 2: Convert to fraction form
   1,019.48/1,406.82 = 605.48/x
3. Step 3: Cross multiply
   1,019.48x = 1,406.82 × 605.48
4. Step 4: Simplify right side
   1,019.48x = 851,801.37
5. Step 5: Solve for x
   x = 851,801.37/1,019.48
6. Step 6: Final answer
   x = 835.53