Finding the Fourth Proportional to 2,538.32, 3,808.04 and 1,443.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,538.32 : 3,808.04 = 1,443.20 : x
2. Step 2: Convert to fraction form
   2,538.32/3,808.04 = 1,443.20/x
3. Step 3: Cross multiply
   2,538.32x = 3,808.04 × 1,443.20
4. Step 4: Simplify right side
   2,538.32x = 5,495,763.33
5. Step 5: Solve for x
   x = 5,495,763.33/2,538.32
6. Step 6: Final answer
   x = 2,165.12