Finding the Fourth Proportional to 2,538.30, 3,804.85 and 1,440.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.30 : 3,804.85 = 1,440.34 : x
2. Step 2: Convert to fraction form
   2,538.30/3,804.85 = 1,440.34/x
3. Step 3: Cross multiply
   2,538.30x = 3,804.85 × 1,440.34
4. Step 4: Simplify right side
   2,538.30x = 5,480,277.65
5. Step 5: Solve for x
   x = 5,480,277.65/2,538.30
6. Step 6: Final answer
   x = 2,159.03