Finding the Fourth Proportional to 1,100.34, 1,649.03 and 450.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.34 : 1,649.03 = 450.72 : x
2. Step 2: Convert to fraction form
   1,100.34/1,649.03 = 450.72/x
3. Step 3: Cross multiply
   1,100.34x = 1,649.03 × 450.72
4. Step 4: Simplify right side
   1,100.34x = 743,248.55
5. Step 5: Solve for x
   x = 743,248.55/1,100.34
6. Step 6: Final answer
   x = 675.47