Finding the Fourth Proportional to 1,218.82, 1,682.01 and 694.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,218.82 : 1,682.01 = 694.84 : x
2. Step 2: Convert to fraction form
   1,218.82/1,682.01 = 694.84/x
3. Step 3: Cross multiply
   1,218.82x = 1,682.01 × 694.84
4. Step 4: Simplify right side
   1,218.82x = 1,168,727.83
5. Step 5: Solve for x
   x = 1,168,727.83/1,218.82
6. Step 6: Final answer
   x = 958.90