Finding the Fourth Proportional to 2,356.28, 3,535.40 and 1,124.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.28 : 3,535.40 = 1,124.56 : x
2. Step 2: Convert to fraction form
   2,356.28/3,535.40 = 1,124.56/x
3. Step 3: Cross multiply
   2,356.28x = 3,535.40 × 1,124.56
4. Step 4: Simplify right side
   2,356.28x = 3,975,769.42
5. Step 5: Solve for x
   x = 3,975,769.42/2,356.28
6. Step 6: Final answer
   x = 1,687.31