Finding the Fourth Proportional to 1,996.77, 2,755.41 and 1,112.55

Step by Step Solution

1. Step 1: Write the proportion equation
   1,996.77 : 2,755.41 = 1,112.55 : x
2. Step 2: Convert to fraction form
   1,996.77/2,755.41 = 1,112.55/x
3. Step 3: Cross multiply
   1,996.77x = 2,755.41 × 1,112.55
4. Step 4: Simplify right side
   1,996.77x = 3,065,531.40
5. Step 5: Solve for x
   x = 3,065,531.40/1,996.77
6. Step 6: Final answer
   x = 1,535.25