Finding the Fourth Proportional to 2,429.86, 3,644.82 and 698.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.86 : 3,644.82 = 698.50 : x
2. Step 2: Convert to fraction form
   2,429.86/3,644.82 = 698.50/x
3. Step 3: Cross multiply
   2,429.86x = 3,644.82 × 698.50
4. Step 4: Simplify right side
   2,429.86x = 2,545,906.77
5. Step 5: Solve for x
   x = 2,545,906.77/2,429.86
6. Step 6: Final answer
   x = 1,047.76