Finding the Fourth Proportional to 2,369.98, 3,555.56 and 726.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,369.98 : 3,555.56 = 726.45 : x
2. Step 2: Convert to fraction form
   2,369.98/3,555.56 = 726.45/x
3. Step 3: Cross multiply
   2,369.98x = 3,555.56 × 726.45
4. Step 4: Simplify right side
   2,369.98x = 2,582,936.56
5. Step 5: Solve for x
   x = 2,582,936.56/2,369.98
6. Step 6: Final answer
   x = 1,089.86