Finding the Fourth Proportional to 1,096.60, 1,513.37 and 624.51

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.60 : 1,513.37 = 624.51 : x
2. Step 2: Convert to fraction form
   1,096.60/1,513.37 = 624.51/x
3. Step 3: Cross multiply
   1,096.60x = 1,513.37 × 624.51
4. Step 4: Simplify right side
   1,096.60x = 945,114.70
5. Step 5: Solve for x
   x = 945,114.70/1,096.60
6. Step 6: Final answer
   x = 861.86