Finding the Fourth Proportional to 2,723.86, 4,082.58 and 1,317.40

Step by Step Solution

1. Step 1: Write the proportion equation
   2,723.86 : 4,082.58 = 1,317.40 : x
2. Step 2: Convert to fraction form
   2,723.86/4,082.58 = 1,317.40/x
3. Step 3: Cross multiply
   2,723.86x = 4,082.58 × 1,317.40
4. Step 4: Simplify right side
   2,723.86x = 5,378,390.89
5. Step 5: Solve for x
   x = 5,378,390.89/2,723.86
6. Step 6: Final answer
   x = 1,974.55