Finding the Fourth Proportional to 2,725.83, 4,090.81 and 1,997.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,725.83 : 4,090.81 = 1,997.31 : x
2. Step 2: Convert to fraction form
   2,725.83/4,090.81 = 1,997.31/x
3. Step 3: Cross multiply
   2,725.83x = 4,090.81 × 1,997.31
4. Step 4: Simplify right side
   2,725.83x = 8,170,590.27
5. Step 5: Solve for x
   x = 8,170,590.27/2,725.83
6. Step 6: Final answer
   x = 2,997.47