Finding the Fourth Proportional to 1,577.23, 2,361.71 and 1,112.49

Step by Step Solution

1. Step 1: Write the proportion equation
   1,577.23 : 2,361.71 = 1,112.49 : x
2. Step 2: Convert to fraction form
   1,577.23/2,361.71 = 1,112.49/x
3. Step 3: Cross multiply
   1,577.23x = 2,361.71 × 1,112.49
4. Step 4: Simplify right side
   1,577.23x = 2,627,361.39
5. Step 5: Solve for x
   x = 2,627,361.39/1,577.23
6. Step 6: Final answer
   x = 1,665.81