Finding the Fourth Proportional to 2,034.81, 2,808.01 and 1,138.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,034.81 : 2,808.01 = 1,138.56 : x
2. Step 2: Convert to fraction form
   2,034.81/2,808.01 = 1,138.56/x
3. Step 3: Cross multiply
   2,034.81x = 2,808.01 × 1,138.56
4. Step 4: Simplify right side
   2,034.81x = 3,197,099.82
5. Step 5: Solve for x
   x = 3,197,099.82/2,034.81
6. Step 6: Final answer
   x = 1,571.20