Finding the Fourth Proportional to 2,058.57, 3,088.53 and 826.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.57 : 3,088.53 = 826.29 : x
2. Step 2: Convert to fraction form
   2,058.57/3,088.53 = 826.29/x
3. Step 3: Cross multiply
   2,058.57x = 3,088.53 × 826.29
4. Step 4: Simplify right side
   2,058.57x = 2,552,021.45
5. Step 5: Solve for x
   x = 2,552,021.45/2,058.57
6. Step 6: Final answer
   x = 1,239.71