Finding the Fourth Proportional to 1,096.60, 1,513.28 and 624.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.60 : 1,513.28 = 624.52 : x
2. Step 2: Convert to fraction form
   1,096.60/1,513.28 = 624.52/x
3. Step 3: Cross multiply
   1,096.60x = 1,513.28 × 624.52
4. Step 4: Simplify right side
   1,096.60x = 945,073.63
5. Step 5: Solve for x
   x = 945,073.63/1,096.60
6. Step 6: Final answer
   x = 861.82