Finding the Fourth Proportional to 2,369.70, 3,554.38 and 726.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,369.70 : 3,554.38 = 726.10 : x
2. Step 2: Convert to fraction form
   2,369.70/3,554.38 = 726.10/x
3. Step 3: Cross multiply
   2,369.70x = 3,554.38 × 726.10
4. Step 4: Simplify right side
   2,369.70x = 2,580,835.32
5. Step 5: Solve for x
   x = 2,580,835.32/2,369.70
6. Step 6: Final answer
   x = 1,089.10