Finding the Fourth Proportional to 3,156.07, 4,744.59 and 2,238.20

Step by Step Solution

1. Step 1: Write the proportion equation
   3,156.07 : 4,744.59 = 2,238.20 : x
2. Step 2: Convert to fraction form
   3,156.07/4,744.59 = 2,238.20/x
3. Step 3: Cross multiply
   3,156.07x = 4,744.59 × 2,238.20
4. Step 4: Simplify right side
   3,156.07x = 10,619,330.15
5. Step 5: Solve for x
   x = 10,619,330.15/3,156.07
6. Step 6: Final answer
   x = 3,364.74