Finding the Fourth Proportional to 3,946.32, 5,922.89 and 1,607.61

Step by Step Solution

1. Step 1: Write the proportion equation
   3,946.32 : 5,922.89 = 1,607.61 : x
2. Step 2: Convert to fraction form
   3,946.32/5,922.89 = 1,607.61/x
3. Step 3: Cross multiply
   3,946.32x = 5,922.89 × 1,607.61
4. Step 4: Simplify right side
   3,946.32x = 9,521,717.39
5. Step 5: Solve for x
   x = 9,521,717.39/3,946.32
6. Step 6: Final answer
   x = 2,412.81