Finding the Fourth Proportional to 3,081.88, 4,253.06 and 1,684.63

Step by Step Solution

1. Step 1: Write the proportion equation
   3,081.88 : 4,253.06 = 1,684.63 : x
2. Step 2: Convert to fraction form
   3,081.88/4,253.06 = 1,684.63/x
3. Step 3: Cross multiply
   3,081.88x = 4,253.06 × 1,684.63
4. Step 4: Simplify right side
   3,081.88x = 7,164,802.78
5. Step 5: Solve for x
   x = 7,164,802.78/3,081.88
6. Step 6: Final answer
   x = 2,324.82