Finding the Fourth Proportional to 2,238.12, 3,094.74 and 1,911.96

Step by Step Solution

1. Step 1: Write the proportion equation
   2,238.12 : 3,094.74 = 1,911.96 : x
2. Step 2: Convert to fraction form
   2,238.12/3,094.74 = 1,911.96/x
3. Step 3: Cross multiply
   2,238.12x = 3,094.74 × 1,911.96
4. Step 4: Simplify right side
   2,238.12x = 5,917,019.09
5. Step 5: Solve for x
   x = 5,917,019.09/2,238.12
6. Step 6: Final answer
   x = 2,643.75