Finding the Fourth Proportional to 2,369.90, 3,554.72 and 726.46

Step by Step Solution

1. Step 1: Write the proportion equation
   2,369.90 : 3,554.72 = 726.46 : x
2. Step 2: Convert to fraction form
   2,369.90/3,554.72 = 726.46/x
3. Step 3: Cross multiply
   2,369.90x = 3,554.72 × 726.46
4. Step 4: Simplify right side
   2,369.90x = 2,582,361.89
5. Step 5: Solve for x
   x = 2,582,361.89/2,369.90
6. Step 6: Final answer
   x = 1,089.65