Finding the Fourth Proportional to 2,590.86, 3,887.21 and 1,358.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,590.86 : 3,887.21 = 1,358.25 : x
2. Step 2: Convert to fraction form
   2,590.86/3,887.21 = 1,358.25/x
3. Step 3: Cross multiply
   2,590.86x = 3,887.21 × 1,358.25
4. Step 4: Simplify right side
   2,590.86x = 5,279,802.98
5. Step 5: Solve for x
   x = 5,279,802.98/2,590.86
6. Step 6: Final answer
   x = 2,037.86