Finding the Fourth Proportional to 2,058.86, 2,822.16 and 2,031.17

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.86 : 2,822.16 = 2,031.17 : x
2. Step 2: Convert to fraction form
   2,058.86/2,822.16 = 2,031.17/x
3. Step 3: Cross multiply
   2,058.86x = 2,822.16 × 2,031.17
4. Step 4: Simplify right side
   2,058.86x = 5,732,272.62
5. Step 5: Solve for x
   x = 5,732,272.62/2,058.86
6. Step 6: Final answer
   x = 2,784.20