Finding the Fourth Proportional to 2,274.35, 3,138.59 and 1,266.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,274.35 : 3,138.59 = 1,266.07 : x
2. Step 2: Convert to fraction form
   2,274.35/3,138.59 = 1,266.07/x
3. Step 3: Cross multiply
   2,274.35x = 3,138.59 × 1,266.07
4. Step 4: Simplify right side
   2,274.35x = 3,973,674.64
5. Step 5: Solve for x
   x = 3,973,674.64/2,274.35
6. Step 6: Final answer
   x = 1,747.17