Finding the Fourth Proportional to 3,981.81, 5,943.51 and 3,514.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981.81 : 5,943.51 = 3,514.79 : x
2. Step 2: Convert to fraction form
   3,981.81/5,943.51 = 3,514.79/x
3. Step 3: Cross multiply
   3,981.81x = 5,943.51 × 3,514.79
4. Step 4: Simplify right side
   3,981.81x = 20,890,159.80
5. Step 5: Solve for x
   x = 20,890,159.80/3,981.81
6. Step 6: Final answer
   x = 5,246.40