Finding the Fourth Proportional to 1,231.69, 1,846.98 and 451.46

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231.69 : 1,846.98 = 451.46 : x
2. Step 2: Convert to fraction form
   1,231.69/1,846.98 = 451.46/x
3. Step 3: Cross multiply
   1,231.69x = 1,846.98 × 451.46
4. Step 4: Simplify right side
   1,231.69x = 833,837.59
5. Step 5: Solve for x
   x = 833,837.59/1,231.69
6. Step 6: Final answer
   x = 676.99