Finding the Fourth Proportional to 2,629.22, 3,944.96 and 985.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,629.22 : 3,944.96 = 985.56 : x
2. Step 2: Convert to fraction form
   2,629.22/3,944.96 = 985.56/x
3. Step 3: Cross multiply
   2,629.22x = 3,944.96 × 985.56
4. Step 4: Simplify right side
   2,629.22x = 3,887,994.78
5. Step 5: Solve for x
   x = 3,887,994.78/2,629.22
6. Step 6: Final answer
   x = 1,478.76