Finding the Fourth Proportional to 2,058.51, 2,840.72 and 1,174.29

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.51 : 2,840.72 = 1,174.29 : x
2. Step 2: Convert to fraction form
   2,058.51/2,840.72 = 1,174.29/x
3. Step 3: Cross multiply
   2,058.51x = 2,840.72 × 1,174.29
4. Step 4: Simplify right side
   2,058.51x = 3,335,823.22
5. Step 5: Solve for x
   x = 3,335,823.22/2,058.51
6. Step 6: Final answer
   x = 1,620.50