Finding the Fourth Proportional to 1,019.59, 1,530.02 and 609.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.59 : 1,530.02 = 609.12 : x
2. Step 2: Convert to fraction form
   1,019.59/1,530.02 = 609.12/x
3. Step 3: Cross multiply
   1,019.59x = 1,530.02 × 609.12
4. Step 4: Simplify right side
   1,019.59x = 931,967.31
5. Step 5: Solve for x
   x = 931,967.31/1,019.59
6. Step 6: Final answer
   x = 914.06