Finding the Fourth Proportional to 2,168.94, 3,251.61 and 1,056.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,168.94 : 3,251.61 = 1,056.54 : x
2. Step 2: Convert to fraction form
   2,168.94/3,251.61 = 1,056.54/x
3. Step 3: Cross multiply
   2,168.94x = 3,251.61 × 1,056.54
4. Step 4: Simplify right side
   2,168.94x = 3,435,456.03
5. Step 5: Solve for x
   x = 3,435,456.03/2,168.94
6. Step 6: Final answer
   x = 1,583.93