Finding the Fourth Proportional to 1,621.42, 2,235.78 and 1,096.54

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621.42 : 2,235.78 = 1,096.54 : x
2. Step 2: Convert to fraction form
   1,621.42/2,235.78 = 1,096.54/x
3. Step 3: Cross multiply
   1,621.42x = 2,235.78 × 1,096.54
4. Step 4: Simplify right side
   1,621.42x = 2,451,622.20
5. Step 5: Solve for x
   x = 2,451,622.20/1,621.42
6. Step 6: Final answer
   x = 1,512.02