Finding the Fourth Proportional to 1,118.34, 1,544.04 and 699.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.34 : 1,544.04 = 699.30 : x
2. Step 2: Convert to fraction form
   1,118.34/1,544.04 = 699.30/x
3. Step 3: Cross multiply
   1,118.34x = 1,544.04 × 699.30
4. Step 4: Simplify right side
   1,118.34x = 1,079,747.17
5. Step 5: Solve for x
   x = 1,079,747.17/1,118.34
6. Step 6: Final answer
   x = 965.49