Finding the Fourth Proportional to 3,796.29, 5,238.86 and 2,117.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,796.29 : 5,238.86 = 2,117.72 : x
2. Step 2: Convert to fraction form
   3,796.29/5,238.86 = 2,117.72/x
3. Step 3: Cross multiply
   3,796.29x = 5,238.86 × 2,117.72
4. Step 4: Simplify right side
   3,796.29x = 11,094,438.60
5. Step 5: Solve for x
   x = 11,094,438.60/3,796.29
6. Step 6: Final answer
   x = 2,922.44