Finding the Fourth Proportional to 1,058.18, 1,460.17 and 616.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058.18 : 1,460.17 = 616.10 : x
2. Step 2: Convert to fraction form
   1,058.18/1,460.17 = 616.10/x
3. Step 3: Cross multiply
   1,058.18x = 1,460.17 × 616.10
4. Step 4: Simplify right side
   1,058.18x = 899,610.74
5. Step 5: Solve for x
   x = 899,610.74/1,058.18
6. Step 6: Final answer
   x = 850.15