Finding the Fourth Proportional to 2,590.85, 3,887.43 and 1,357.97

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.85 : 3,887.43 = 1,357.97 : x
2. Step 2: Convert to fraction form
   2,590.85/3,887.43 = 1,357.97/x
3. Step 3: Cross multiply
   2,590.85x = 3,887.43 × 1,357.97
4. Step 4: Simplify right side
   2,590.85x = 5,279,013.32
5. Step 5: Solve for x
   x = 5,279,013.32/2,590.85
6. Step 6: Final answer
   x = 2,037.56