Finding the Fourth Proportional to 1,912.02, 2,860.47 and 1,365.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,912.02 : 2,860.47 = 1,365.54 : x
2. Step 2: Convert to fraction form
   1,912.02/2,860.47 = 1,365.54/x
3. Step 3: Cross multiply
   1,912.02x = 2,860.47 × 1,365.54
4. Step 4: Simplify right side
   1,912.02x = 3,906,086.20
5. Step 5: Solve for x
   x = 3,906,086.20/1,912.02
6. Step 6: Final answer
   x = 2,042.91