Finding the Fourth Proportional to 1,058.47, 1,460.39 and 610.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,058.47 : 1,460.39 = 610.31 : x
2. Step 2: Convert to fraction form
   1,058.47/1,460.39 = 610.31/x
3. Step 3: Cross multiply
   1,058.47x = 1,460.39 × 610.31
4. Step 4: Simplify right side
   1,058.47x = 891,291.22
5. Step 5: Solve for x
   x = 891,291.22/1,058.47
6. Step 6: Final answer
   x = 842.06