Finding the Fourth Proportional to 2,059, 3,081.31 and 1,684.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,059 : 3,081.31 = 1,684.48 : x
2. Step 2: Convert to fraction form
   2,059/3,081.31 = 1,684.48/x
3. Step 3: Cross multiply
   2,059x = 3,081.31 × 1,684.48
4. Step 4: Simplify right side
   2,059x = 5,190,405.07
5. Step 5: Solve for x
   x = 5,190,405.07/2,059
6. Step 6: Final answer
   x = 2,520.84