Finding the Fourth Proportional to 1,096.43, 1,512.86 and 630.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.43 : 1,512.86 = 630.59 : x
2. Step 2: Convert to fraction form
   1,096.43/1,512.86 = 630.59/x
3. Step 3: Cross multiply
   1,096.43x = 1,512.86 × 630.59
4. Step 4: Simplify right side
   1,096.43x = 953,983.67
5. Step 5: Solve for x
   x = 953,983.67/1,096.43
6. Step 6: Final answer
   x = 870.09