Finding the Fourth Proportional to 1,997.28, 2,756.17 and 1,113.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.28 : 2,756.17 = 1,113.04 : x
2. Step 2: Convert to fraction form
   1,997.28/2,756.17 = 1,113.04/x
3. Step 3: Cross multiply
   1,997.28x = 2,756.17 × 1,113.04
4. Step 4: Simplify right side
   1,997.28x = 3,067,727.46
5. Step 5: Solve for x
   x = 3,067,727.46/1,997.28
6. Step 6: Final answer
   x = 1,535.95