Finding the Fourth Proportional to 2,443.16, 3,370.72 and 1,394.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.16 : 3,370.72 = 1,394.48 : x
2. Step 2: Convert to fraction form
   2,443.16/3,370.72 = 1,394.48/x
3. Step 3: Cross multiply
   2,443.16x = 3,370.72 × 1,394.48
4. Step 4: Simplify right side
   2,443.16x = 4,700,401.63
5. Step 5: Solve for x
   x = 4,700,401.63/2,443.16
6. Step 6: Final answer
   x = 1,923.90