Finding the Fourth Proportional to 1,118.32, 1,543.56 and 699.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,118.32 : 1,543.56 = 699.04 : x
2. Step 2: Convert to fraction form
   1,118.32/1,543.56 = 699.04/x
3. Step 3: Cross multiply
   1,118.32x = 1,543.56 × 699.04
4. Step 4: Simplify right side
   1,118.32x = 1,079,010.18
5. Step 5: Solve for x
   x = 1,079,010.18/1,118.32
6. Step 6: Final answer
   x = 964.85