Finding the Fourth Proportional to 1,002.96, 1,384.36 and 609.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,002.96 : 1,384.36 = 609.98 : x
2. Step 2: Convert to fraction form
   1,002.96/1,384.36 = 609.98/x
3. Step 3: Cross multiply
   1,002.96x = 1,384.36 × 609.98
4. Step 4: Simplify right side
   1,002.96x = 844,431.91
5. Step 5: Solve for x
   x = 844,431.91/1,002.96
6. Step 6: Final answer
   x = 841.94