Finding the Fourth Proportional to 2,586.86, 3,569.33 and 1,691.92

Step by Step Solution

1. Step 1: Write the proportion equation
   2,586.86 : 3,569.33 = 1,691.92 : x
2. Step 2: Convert to fraction form
   2,586.86/3,569.33 = 1,691.92/x
3. Step 3: Cross multiply
   2,586.86x = 3,569.33 × 1,691.92
4. Step 4: Simplify right side
   2,586.86x = 6,039,009.43
5. Step 5: Solve for x
   x = 6,039,009.43/2,586.86
6. Step 6: Final answer
   x = 2,334.49