Finding the Fourth Proportional to 3,851.34, 5,309.33 and 2,590.17

Step by Step Solution

1. Step 1: Write the proportion equation
   3,851.34 : 5,309.33 = 2,590.17 : x
2. Step 2: Convert to fraction form
   3,851.34/5,309.33 = 2,590.17/x
3. Step 3: Cross multiply
   3,851.34x = 5,309.33 × 2,590.17
4. Step 4: Simplify right side
   3,851.34x = 13,752,054.34
5. Step 5: Solve for x
   x = 13,752,054.34/3,851.34
6. Step 6: Final answer
   x = 3,570.72