Finding the Fourth Proportional to 2,429.27, 3,644.76 and 1,042.55

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.27 : 3,644.76 = 1,042.55 : x
2. Step 2: Convert to fraction form
   2,429.27/3,644.76 = 1,042.55/x
3. Step 3: Cross multiply
   2,429.27x = 3,644.76 × 1,042.55
4. Step 4: Simplify right side
   2,429.27x = 3,799,844.54
5. Step 5: Solve for x
   x = 3,799,844.54/2,429.27
6. Step 6: Final answer
   x = 1,564.19