Finding the Fourth Proportional to 1,481.15, 2,041.78 and 1,243.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,481.15 : 2,041.78 = 1,243.31 : x
2. Step 2: Convert to fraction form
   1,481.15/2,041.78 = 1,243.31/x
3. Step 3: Cross multiply
   1,481.15x = 2,041.78 × 1,243.31
4. Step 4: Simplify right side
   1,481.15x = 2,538,565.49
5. Step 5: Solve for x
   x = 2,538,565.49/1,481.15
6. Step 6: Final answer
   x = 1,713.92