Finding the Fourth Proportional to 1,019.82, 1,530.45 and 609.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.82 : 1,530.45 = 609.42 : x
2. Step 2: Convert to fraction form
   1,019.82/1,530.45 = 609.42/x
3. Step 3: Cross multiply
   1,019.82x = 1,530.45 × 609.42
4. Step 4: Simplify right side
   1,019.82x = 932,686.84
5. Step 5: Solve for x
   x = 932,686.84/1,019.82
6. Step 6: Final answer
   x = 914.56