Finding the Fourth Proportional to 1,076.16, 1,485.12 and 610.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,076.16 : 1,485.12 = 610.41 : x
2. Step 2: Convert to fraction form
   1,076.16/1,485.12 = 610.41/x
3. Step 3: Cross multiply
   1,076.16x = 1,485.12 × 610.41
4. Step 4: Simplify right side
   1,076.16x = 906,532.10
5. Step 5: Solve for x
   x = 906,532.10/1,076.16
6. Step 6: Final answer
   x = 842.38