Finding the Fourth Proportional to 2,058.01, 3,080.17 and 1,645.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.01 : 3,080.17 = 1,645.21 : x
2. Step 2: Convert to fraction form
   2,058.01/3,080.17 = 1,645.21/x
3. Step 3: Cross multiply
   2,058.01x = 3,080.17 × 1,645.21
4. Step 4: Simplify right side
   2,058.01x = 5,067,526.49
5. Step 5: Solve for x
   x = 5,067,526.49/2,058.01
6. Step 6: Final answer
   x = 2,462.35