Finding the Fourth Proportional to 2,356.64, 3,536.24 and 1,123.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.64 : 3,536.24 = 1,123.28 : x
2. Step 2: Convert to fraction form
   2,356.64/3,536.24 = 1,123.28/x
3. Step 3: Cross multiply
   2,356.64x = 3,536.24 × 1,123.28
4. Step 4: Simplify right side
   2,356.64x = 3,972,187.67
5. Step 5: Solve for x
   x = 3,972,187.67/2,356.64
6. Step 6: Final answer
   x = 1,685.53