Finding the Fourth Proportional to 1,231.34, 1,698.82 and 700.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231.34 : 1,698.82 = 700.18 : x
2. Step 2: Convert to fraction form
   1,231.34/1,698.82 = 700.18/x
3. Step 3: Cross multiply
   1,231.34x = 1,698.82 × 700.18
4. Step 4: Simplify right side
   1,231.34x = 1,189,479.79
5. Step 5: Solve for x
   x = 1,189,479.79/1,231.34
6. Step 6: Final answer
   x = 966.00