Finding the Fourth Proportional to 1,086.66, 1,498.86 and 693.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,086.66 : 1,498.86 = 693.52 : x
2. Step 2: Convert to fraction form
   1,086.66/1,498.86 = 693.52/x
3. Step 3: Cross multiply
   1,086.66x = 1,498.86 × 693.52
4. Step 4: Simplify right side
   1,086.66x = 1,039,489.39
5. Step 5: Solve for x
   x = 1,039,489.39/1,086.66
6. Step 6: Final answer
   x = 956.59