Finding the Fourth Proportional to 1,096.86, 1,644.20 and 902.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,096.86 : 1,644.20 = 902.46 : x
2. Step 2: Convert to fraction form
   1,096.86/1,644.20 = 902.46/x
3. Step 3: Cross multiply
   1,096.86x = 1,644.20 × 902.46
4. Step 4: Simplify right side
   1,096.86x = 1,483,824.73
5. Step 5: Solve for x
   x = 1,483,824.73/1,096.86
6. Step 6: Final answer
   x = 1,352.79