Finding the Fourth Proportional to 2,423.78, 3,634.05 and 1,124.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,423.78 : 3,634.05 = 1,124.54 : x
2. Step 2: Convert to fraction form
   2,423.78/3,634.05 = 1,124.54/x
3. Step 3: Cross multiply
   2,423.78x = 3,634.05 × 1,124.54
4. Step 4: Simplify right side
   2,423.78x = 4,086,634.59
5. Step 5: Solve for x
   x = 4,086,634.59/2,423.78
6. Step 6: Final answer
   x = 1,686.06