Finding the Fourth Proportional to 2,058.03, 2,840.31 and 1,174.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,058.03 : 2,840.31 = 1,174.05 : x
2. Step 2: Convert to fraction form
   2,058.03/2,840.31 = 1,174.05/x
3. Step 3: Cross multiply
   2,058.03x = 2,840.31 × 1,174.05
4. Step 4: Simplify right side
   2,058.03x = 3,334,665.96
5. Step 5: Solve for x
   x = 3,334,665.96/2,058.03
6. Step 6: Final answer
   x = 1,620.32