Finding the Fourth Proportional to 2,586.69, 3,568.35 and 1,590.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.69 : 3,568.35 = 1,590.39 : x
2. Step 2: Convert to fraction form
   2,586.69/3,568.35 = 1,590.39/x
3. Step 3: Cross multiply
   2,586.69x = 3,568.35 × 1,590.39
4. Step 4: Simplify right side
   2,586.69x = 5,675,068.16
5. Step 5: Solve for x
   x = 5,675,068.16/2,586.69
6. Step 6: Final answer
   x = 2,193.95