Finding the Fourth Proportional to 3,917.01, 5,405.54 and 2,238.33

Step by Step Solution

1. Step 1: Write the proportion equation
   3,917.01 : 5,405.54 = 2,238.33 : x
2. Step 2: Convert to fraction form
   3,917.01/5,405.54 = 2,238.33/x
3. Step 3: Cross multiply
   3,917.01x = 5,405.54 × 2,238.33
4. Step 4: Simplify right side
   3,917.01x = 12,099,391.43
5. Step 5: Solve for x
   x = 12,099,391.43/3,917.01
6. Step 6: Final answer
   x = 3,088.94