Finding the Fourth Proportional to 2,443.65, 3,369.95 and 1,557.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,443.65 : 3,369.95 = 1,557.92 : x
2. Step 2: Convert to fraction form
   2,443.65/3,369.95 = 1,557.92/x
3. Step 3: Cross multiply
   2,443.65x = 3,369.95 × 1,557.92
4. Step 4: Simplify right side
   2,443.65x = 5,250,087.86
5. Step 5: Solve for x
   x = 5,250,087.86/2,443.65
6. Step 6: Final answer
   x = 2,148.46