Finding the Fourth Proportional to 1,100.69, 1,651.37 and 451.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,100.69 : 1,651.37 = 451.47 : x
2. Step 2: Convert to fraction form
   1,100.69/1,651.37 = 451.47/x
3. Step 3: Cross multiply
   1,100.69x = 1,651.37 × 451.47
4. Step 4: Simplify right side
   1,100.69x = 745,544.01
5. Step 5: Solve for x
   x = 745,544.01/1,100.69
6. Step 6: Final answer
   x = 677.34