Finding the Fourth Proportional to 1,100.77, 1,651.29 and 451.42

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.77 : 1,651.29 = 451.42 : x
2. Step 2: Convert to fraction form
   1,100.77/1,651.29 = 451.42/x
3. Step 3: Cross multiply
   1,100.77x = 1,651.29 × 451.42
4. Step 4: Simplify right side
   1,100.77x = 745,425.33
5. Step 5: Solve for x
   x = 745,425.33/1,100.77
6. Step 6: Final answer
   x = 677.19