Finding the Fourth Proportional to 1,997.02, 2,755.82 and 1,112.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.02 : 2,755.82 = 1,112.78 : x
2. Step 2: Convert to fraction form
   1,997.02/2,755.82 = 1,112.78/x
3. Step 3: Cross multiply
   1,997.02x = 2,755.82 × 1,112.78
4. Step 4: Simplify right side
   1,997.02x = 3,066,621.38
5. Step 5: Solve for x
   x = 3,066,621.38/1,997.02
6. Step 6: Final answer
   x = 1,535.60