Finding the Fourth Proportional to 1,900.24, 2,849.45 and 1,078.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,900.24 : 2,849.45 = 1,078.30 : x
2. Step 2: Convert to fraction form
   1,900.24/2,849.45 = 1,078.30/x
3. Step 3: Cross multiply
   1,900.24x = 2,849.45 × 1,078.30
4. Step 4: Simplify right side
   1,900.24x = 3,072,561.94
5. Step 5: Solve for x
   x = 3,072,561.94/1,900.24
6. Step 6: Final answer
   x = 1,616.93