Finding the Fourth Proportional to 2,369.63, 3,554.31 and 726.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,369.63 : 3,554.31 = 726.05 : x
2. Step 2: Convert to fraction form
   2,369.63/3,554.31 = 726.05/x
3. Step 3: Cross multiply
   2,369.63x = 3,554.31 × 726.05
4. Step 4: Simplify right side
   2,369.63x = 2,580,606.78
5. Step 5: Solve for x
   x = 2,580,606.78/2,369.63
6. Step 6: Final answer
   x = 1,089.03