Finding the Fourth Proportional to 1,997.43, 2,756.13 and 1,113.21

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.43 : 2,756.13 = 1,113.21 : x
2. Step 2: Convert to fraction form
   1,997.43/2,756.13 = 1,113.21/x
3. Step 3: Cross multiply
   1,997.43x = 2,756.13 × 1,113.21
4. Step 4: Simplify right side
   1,997.43x = 3,068,151.48
5. Step 5: Solve for x
   x = 3,068,151.48/1,997.43
6. Step 6: Final answer
   x = 1,536.05