Finding the Fourth Proportional to 1,131.36, 1,694.52 and 697.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.36 : 1,694.52 = 697.56 : x
2. Step 2: Convert to fraction form
   1,131.36/1,694.52 = 697.56/x
3. Step 3: Cross multiply
   1,131.36x = 1,694.52 × 697.56
4. Step 4: Simplify right side
   1,131.36x = 1,182,029.37
5. Step 5: Solve for x
   x = 1,182,029.37/1,131.36
6. Step 6: Final answer
   x = 1,044.79