Finding the Fourth Proportional to 2,614.11, 3,917.89 and 1,315.95

Step by Step Solution

1. Step 1: Write the proportion equation
   2,614.11 : 3,917.89 = 1,315.95 : x
2. Step 2: Convert to fraction form
   2,614.11/3,917.89 = 1,315.95/x
3. Step 3: Cross multiply
   2,614.11x = 3,917.89 × 1,315.95
4. Step 4: Simplify right side
   2,614.11x = 5,155,747.35
5. Step 5: Solve for x
   x = 5,155,747.35/2,614.11
6. Step 6: Final answer
   x = 1,972.28