Finding the Fourth Proportional to 2,357.49, 3,535.41 and 691.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,357.49 : 3,535.41 = 691.16 : x
2. Step 2: Convert to fraction form
   2,357.49/3,535.41 = 691.16/x
3. Step 3: Cross multiply
   2,357.49x = 3,535.41 × 691.16
4. Step 4: Simplify right side
   2,357.49x = 2,443,516.30
5. Step 5: Solve for x
   x = 2,443,516.30/2,357.49
6. Step 6: Final answer
   x = 1,036.49