Finding the Fourth Proportional to 2,538.05, 3,804.48 and 1,440.09

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.05 : 3,804.48 = 1,440.09 : x
2. Step 2: Convert to fraction form
   2,538.05/3,804.48 = 1,440.09/x
3. Step 3: Cross multiply
   2,538.05x = 3,804.48 × 1,440.09
4. Step 4: Simplify right side
   2,538.05x = 5,478,807.87
5. Step 5: Solve for x
   x = 5,478,807.87/2,538.05
6. Step 6: Final answer
   x = 2,158.67