Finding the Fourth Proportional to 1,058.18, 1,460.24 and 616.05

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058.18 : 1,460.24 = 616.05 : x
2. Step 2: Convert to fraction form
   1,058.18/1,460.24 = 616.05/x
3. Step 3: Cross multiply
   1,058.18x = 1,460.24 × 616.05
4. Step 4: Simplify right side
   1,058.18x = 899,577.77
5. Step 5: Solve for x
   x = 899,577.77/1,058.18
6. Step 6: Final answer
   x = 850.12