Finding the Fourth Proportional to 1,036.06, 1,429.86 and 616.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,036.06 : 1,429.86 = 616.48 : x
2. Step 2: Convert to fraction form
   1,036.06/1,429.86 = 616.48/x
3. Step 3: Cross multiply
   1,036.06x = 1,429.86 × 616.48
4. Step 4: Simplify right side
   1,036.06x = 881,480.09
5. Step 5: Solve for x
   x = 881,480.09/1,036.06
6. Step 6: Final answer
   x = 850.80