Finding the Fourth Proportional to 1,463.31, 2,018.84 and 939.15

Step by Step Solution

1. Step 1: Write the proportion equation
   1,463.31 : 2,018.84 = 939.15 : x
2. Step 2: Convert to fraction form
   1,463.31/2,018.84 = 939.15/x
3. Step 3: Cross multiply
   1,463.31x = 2,018.84 × 939.15
4. Step 4: Simplify right side
   1,463.31x = 1,895,988.89
5. Step 5: Solve for x
   x = 1,895,988.89/1,463.31
6. Step 6: Final answer
   x = 1,295.69