Finding the Fourth Proportional to 1,997.29, 2,756.34 and 1,157.98

Step by Step Solution

1. Step 1: Write the proportion equation
   1,997.29 : 2,756.34 = 1,157.98 : x
2. Step 2: Convert to fraction form
   1,997.29/2,756.34 = 1,157.98/x
3. Step 3: Cross multiply
   1,997.29x = 2,756.34 × 1,157.98
4. Step 4: Simplify right side
   1,997.29x = 3,191,786.59
5. Step 5: Solve for x
   x = 3,191,786.59/1,997.29
6. Step 6: Final answer
   x = 1,598.06