Finding the Fourth Proportional to 2,171.84, 3,259.56 and 1,076.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,171.84 : 3,259.56 = 1,076.54 : x
2. Step 2: Convert to fraction form
   2,171.84/3,259.56 = 1,076.54/x
3. Step 3: Cross multiply
   2,171.84x = 3,259.56 × 1,076.54
4. Step 4: Simplify right side
   2,171.84x = 3,509,046.72
5. Step 5: Solve for x
   x = 3,509,046.72/2,171.84
6. Step 6: Final answer
   x = 1,615.70