Finding the Fourth Proportional to 2,429.72, 3,644.76 and 698.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.72 : 3,644.76 = 698.48 : x
2. Step 2: Convert to fraction form
   2,429.72/3,644.76 = 698.48/x
3. Step 3: Cross multiply
   2,429.72x = 3,644.76 × 698.48
4. Step 4: Simplify right side
   2,429.72x = 2,545,791.96
5. Step 5: Solve for x
   x = 2,545,791.96/2,429.72
6. Step 6: Final answer
   x = 1,047.77