Finding the Fourth Proportional to 3,910.55, 5,867.72 and 1,718.99

Step by Step Solution

1. Step 1: Write the proportion equation
   3,910.55 : 5,867.72 = 1,718.99 : x
2. Step 2: Convert to fraction form
   3,910.55/5,867.72 = 1,718.99/x
3. Step 3: Cross multiply
   3,910.55x = 5,867.72 × 1,718.99
4. Step 4: Simplify right side
   3,910.55x = 10,086,547.71
5. Step 5: Solve for x
   x = 10,086,547.71/3,910.55
6. Step 6: Final answer
   x = 2,579.32