Finding the Fourth Proportional to 2,429.94, 3,644.37 and 698.70

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.94 : 3,644.37 = 698.70 : x
2. Step 2: Convert to fraction form
   2,429.94/3,644.37 = 698.70/x
3. Step 3: Cross multiply
   2,429.94x = 3,644.37 × 698.70
4. Step 4: Simplify right side
   2,429.94x = 2,546,321.32
5. Step 5: Solve for x
   x = 2,546,321.32/2,429.94
6. Step 6: Final answer
   x = 1,047.89