Finding the Fourth Proportional to 2,369.78, 3,269.49 and 1,438.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,369.78 : 3,269.49 = 1,438.10 : x
2. Step 2: Convert to fraction form
   2,369.78/3,269.49 = 1,438.10/x
3. Step 3: Cross multiply
   2,369.78x = 3,269.49 × 1,438.10
4. Step 4: Simplify right side
   2,369.78x = 4,701,853.57
5. Step 5: Solve for x
   x = 4,701,853.57/2,369.78
6. Step 6: Final answer
   x = 1,984.09