Finding the Fourth Proportional to 3,058.76, 4,587.42 and 1,111.40

Step by Step Solution

1. Step 1: Write the proportion equation
   3,058.76 : 4,587.42 = 1,111.40 : x
2. Step 2: Convert to fraction form
   3,058.76/4,587.42 = 1,111.40/x
3. Step 3: Cross multiply
   3,058.76x = 4,587.42 × 1,111.40
4. Step 4: Simplify right side
   3,058.76x = 5,098,458.59
5. Step 5: Solve for x
   x = 5,098,458.59/3,058.76
6. Step 6: Final answer
   x = 1,666.84