Finding the Fourth Proportional to 1,100.55, 1,651.23 and 451.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.55 : 1,651.23 = 451.34 : x
2. Step 2: Convert to fraction form
   1,100.55/1,651.23 = 451.34/x
3. Step 3: Cross multiply
   1,100.55x = 1,651.23 × 451.34
4. Step 4: Simplify right side
   1,100.55x = 745,257.89
5. Step 5: Solve for x
   x = 745,257.89/1,100.55
6. Step 6: Final answer
   x = 677.17