Finding the Fourth Proportional to 2,586.02, 3,565.37 and 1,878.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.02 : 3,565.37 = 1,878.89 : x
2. Step 2: Convert to fraction form
   2,586.02/3,565.37 = 1,878.89/x
3. Step 3: Cross multiply
   2,586.02x = 3,565.37 × 1,878.89
4. Step 4: Simplify right side
   2,586.02x = 6,698,910.82
5. Step 5: Solve for x
   x = 6,698,910.82/2,586.02
6. Step 6: Final answer
   x = 2,590.44