Finding the Fourth Proportional to 2,009.21, 3,011.38 and 1,034.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,009.21 : 3,011.38 = 1,034.78 : x
2. Step 2: Convert to fraction form
   2,009.21/3,011.38 = 1,034.78/x
3. Step 3: Cross multiply
   2,009.21x = 3,011.38 × 1,034.78
4. Step 4: Simplify right side
   2,009.21x = 3,116,098.15
5. Step 5: Solve for x
   x = 3,116,098.15/2,009.21
6. Step 6: Final answer
   x = 1,550.91