Finding the Fourth Proportional to 1,181.71, 1,763.33 and 1,058.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,181.71 : 1,763.33 = 1,058.73 : x
2. Step 2: Convert to fraction form
   1,181.71/1,763.33 = 1,058.73/x
3. Step 3: Cross multiply
   1,181.71x = 1,763.33 × 1,058.73
4. Step 4: Simplify right side
   1,181.71x = 1,866,890.37
5. Step 5: Solve for x
   x = 1,866,890.37/1,181.71
6. Step 6: Final answer
   x = 1,579.82