Finding the Fourth Proportional to 2,838.72, 3,917.16 and 2,629.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,838.72 : 3,917.16 = 2,629.74 : x
2. Step 2: Convert to fraction form
   2,838.72/3,917.16 = 2,629.74/x
3. Step 3: Cross multiply
   2,838.72x = 3,917.16 × 2,629.74
4. Step 4: Simplify right side
   2,838.72x = 10,301,112.34
5. Step 5: Solve for x
   x = 10,301,112.34/2,838.72
6. Step 6: Final answer
   x = 3,628.79