Finding the Fourth Proportional to 1,997.02, 2,755.62 and 1,112.80

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.02 : 2,755.62 = 1,112.80 : x
2. Step 2: Convert to fraction form
   1,997.02/2,755.62 = 1,112.80/x
3. Step 3: Cross multiply
   1,997.02x = 2,755.62 × 1,112.80
4. Step 4: Simplify right side
   1,997.02x = 3,066,453.94
5. Step 5: Solve for x
   x = 3,066,453.94/1,997.02
6. Step 6: Final answer
   x = 1,535.51