Finding the Fourth Proportional to 3,443.61, 5,160.78 and 1,881.27

Step by Step Solution

1. Step 1: Write the proportion equation
   3,443.61 : 5,160.78 = 1,881.27 : x
2. Step 2: Convert to fraction form
   3,443.61/5,160.78 = 1,881.27/x
3. Step 3: Cross multiply
   3,443.61x = 5,160.78 × 1,881.27
4. Step 4: Simplify right side
   3,443.61x = 9,708,820.59
5. Step 5: Solve for x
   x = 9,708,820.59/3,443.61
6. Step 6: Final answer
   x = 2,819.37