Finding the Fourth Proportional to 1,076.25, 1,485.32 and 610.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.25 : 1,485.32 = 610.59 : x
2. Step 2: Convert to fraction form
   1,076.25/1,485.32 = 610.59/x
3. Step 3: Cross multiply
   1,076.25x = 1,485.32 × 610.59
4. Step 4: Simplify right side
   1,076.25x = 906,918.49
5. Step 5: Solve for x
   x = 906,918.49/1,076.25
6. Step 6: Final answer
   x = 842.67