Finding the Fourth Proportional to 2,631.78, 3,944.25 and 1,069.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.78 : 3,944.25 = 1,069.96 : x
2. Step 2: Convert to fraction form
   2,631.78/3,944.25 = 1,069.96/x
3. Step 3: Cross multiply
   2,631.78x = 3,944.25 × 1,069.96
4. Step 4: Simplify right side
   2,631.78x = 4,220,189.73
5. Step 5: Solve for x
   x = 4,220,189.73/2,631.78
6. Step 6: Final answer
   x = 1,603.55