Finding the Fourth Proportional to 1,019.98, 1,529.29 and 609.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,019.98 : 1,529.29 = 609.18 : x
2. Step 2: Convert to fraction form
   1,019.98/1,529.29 = 609.18/x
3. Step 3: Cross multiply
   1,019.98x = 1,529.29 × 609.18
4. Step 4: Simplify right side
   1,019.98x = 931,612.88
5. Step 5: Solve for x
   x = 931,612.88/1,019.98
6. Step 6: Final answer
   x = 913.36