Finding the Fourth Proportional to 3,911.42, 5,869.03 and 1,719.86

Step by Step Solution

1. Step 1: Write the proportion equation
   3,911.42 : 5,869.03 = 1,719.86 : x
2. Step 2: Convert to fraction form
   3,911.42/5,869.03 = 1,719.86/x
3. Step 3: Cross multiply
   3,911.42x = 5,869.03 × 1,719.86
4. Step 4: Simplify right side
   3,911.42x = 10,093,909.94
5. Step 5: Solve for x
   x = 10,093,909.94/3,911.42
6. Step 6: Final answer
   x = 2,580.63