Finding the Fourth Proportional to 1,997.23, 2,756.51 and 1,158.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.23 : 2,756.51 = 1,158.43 : x
2. Step 2: Convert to fraction form
   1,997.23/2,756.51 = 1,158.43/x
3. Step 3: Cross multiply
   1,997.23x = 2,756.51 × 1,158.43
4. Step 4: Simplify right side
   1,997.23x = 3,193,223.88
5. Step 5: Solve for x
   x = 3,193,223.88/1,997.23
6. Step 6: Final answer
   x = 1,598.83