Finding the Fourth Proportional to 1,099.98, 1,650.58 and 450.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,099.98 : 1,650.58 = 450.56 : x
2. Step 2: Convert to fraction form
   1,099.98/1,650.58 = 450.56/x
3. Step 3: Cross multiply
   1,099.98x = 1,650.58 × 450.56
4. Step 4: Simplify right side
   1,099.98x = 743,688.32
5. Step 5: Solve for x
   x = 743,688.32/1,099.98
6. Step 6: Final answer
   x = 676.09