Finding the Fourth Proportional to 3,936.86, 5,904.17 and 1,339.74

Step by Step Solution

1. Step 1: Write the proportion equation
   3,936.86 : 5,904.17 = 1,339.74 : x
2. Step 2: Convert to fraction form
   3,936.86/5,904.17 = 1,339.74/x
3. Step 3: Cross multiply
   3,936.86x = 5,904.17 × 1,339.74
4. Step 4: Simplify right side
   3,936.86x = 7,910,052.72
5. Step 5: Solve for x
   x = 7,910,052.72/3,936.86
6. Step 6: Final answer
   x = 2,009.23