Finding the Fourth Proportional to 1,231.89, 1,846.89 and 744.81

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231.89 : 1,846.89 = 744.81 : x
2. Step 2: Convert to fraction form
   1,231.89/1,846.89 = 744.81/x
3. Step 3: Cross multiply
   1,231.89x = 1,846.89 × 744.81
4. Step 4: Simplify right side
   1,231.89x = 1,375,582.14
5. Step 5: Solve for x
   x = 1,375,582.14/1,231.89
6. Step 6: Final answer
   x = 1,116.64