Finding the Fourth Proportional to 1,231.56, 1,846.43 and 744.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,231.56 : 1,846.43 = 744.50 : x
2. Step 2: Convert to fraction form
   1,231.56/1,846.43 = 744.50/x
3. Step 3: Cross multiply
   1,231.56x = 1,846.43 × 744.50
4. Step 4: Simplify right side
   1,231.56x = 1,374,667.14
5. Step 5: Solve for x
   x = 1,374,667.14/1,231.56
6. Step 6: Final answer
   x = 1,116.20