Finding the Fourth Proportional to 2,058.51, 3,080.92 and 1,645.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.51 : 3,080.92 = 1,645.71 : x
2. Step 2: Convert to fraction form
   2,058.51/3,080.92 = 1,645.71/x
3. Step 3: Cross multiply
   2,058.51x = 3,080.92 × 1,645.71
4. Step 4: Simplify right side
   2,058.51x = 5,070,300.85
5. Step 5: Solve for x
   x = 5,070,300.85/2,058.51
6. Step 6: Final answer
   x = 2,463.10