Finding the Fourth Proportional to 1,096.50, 1,512.79 and 624.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.50 : 1,512.79 = 624.34 : x
2. Step 2: Convert to fraction form
   1,096.50/1,512.79 = 624.34/x
3. Step 3: Cross multiply
   1,096.50x = 1,512.79 × 624.34
4. Step 4: Simplify right side
   1,096.50x = 944,495.31
5. Step 5: Solve for x
   x = 944,495.31/1,096.50
6. Step 6: Final answer
   x = 861.37