Finding the Fourth Proportional to 1,993.28, 2,989.89 and 694.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,993.28 : 2,989.89 = 694.72 : x
2. Step 2: Convert to fraction form
   1,993.28/2,989.89 = 694.72/x
3. Step 3: Cross multiply
   1,993.28x = 2,989.89 × 694.72
4. Step 4: Simplify right side
   1,993.28x = 2,077,136.38
5. Step 5: Solve for x
   x = 2,077,136.38/1,993.28
6. Step 6: Final answer
   x = 1,042.07