Finding the Fourth Proportional to 2,009.61, 2,773.59 and 1,263.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.61 : 2,773.59 = 1,263.68 : x
2. Step 2: Convert to fraction form
   2,009.61/2,773.59 = 1,263.68/x
3. Step 3: Cross multiply
   2,009.61x = 2,773.59 × 1,263.68
4. Step 4: Simplify right side
   2,009.61x = 3,504,944.72
5. Step 5: Solve for x
   x = 3,504,944.72/2,009.61
6. Step 6: Final answer
   x = 1,744.09