Finding the Fourth Proportional to 3,192.27, 4,787.61 and 1,111.71

Step by Step Solution

1. Step 1: Write the proportion equation
   3,192.27 : 4,787.61 = 1,111.71 : x
2. Step 2: Convert to fraction form
   3,192.27/4,787.61 = 1,111.71/x
3. Step 3: Cross multiply
   3,192.27x = 4,787.61 × 1,111.71
4. Step 4: Simplify right side
   3,192.27x = 5,322,433.91
5. Step 5: Solve for x
   x = 5,322,433.91/3,192.27
6. Step 6: Final answer
   x = 1,667.29