Finding the Fourth Proportional to 2,356.86, 3,536.31 and 1,124.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,356.86 : 3,536.31 = 1,124.28 : x
2. Step 2: Convert to fraction form
   2,356.86/3,536.31 = 1,124.28/x
3. Step 3: Cross multiply
   2,356.86x = 3,536.31 × 1,124.28
4. Step 4: Simplify right side
   2,356.86x = 3,975,802.61
5. Step 5: Solve for x
   x = 3,975,802.61/2,356.86
6. Step 6: Final answer
   x = 1,686.91