Finding the Fourth Proportional to 2,429.98, 3,645.88 and 1,456.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,429.98 : 3,645.88 = 1,456.78 : x
2. Step 2: Convert to fraction form
   2,429.98/3,645.88 = 1,456.78/x
3. Step 3: Cross multiply
   2,429.98x = 3,645.88 × 1,456.78
4. Step 4: Simplify right side
   2,429.98x = 5,311,245.07
5. Step 5: Solve for x
   x = 5,311,245.07/2,429.98
6. Step 6: Final answer
   x = 2,185.72