Finding the Fourth Proportional to 2,538.78, 3,503.91 and 1,544.37

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.78 : 3,503.91 = 1,544.37 : x
2. Step 2: Convert to fraction form
   2,538.78/3,503.91 = 1,544.37/x
3. Step 3: Cross multiply
   2,538.78x = 3,503.91 × 1,544.37
4. Step 4: Simplify right side
   2,538.78x = 5,411,333.49
5. Step 5: Solve for x
   x = 5,411,333.49/2,538.78
6. Step 6: Final answer
   x = 2,131.47