Finding the Fourth Proportional to 3,921.83, 5,881.18 and 1,729

Step by Step Solution

1. Step 1: Write the proportion equation
   3,921.83 : 5,881.18 = 1,729 : x
2. Step 2: Convert to fraction form
   3,921.83/5,881.18 = 1,729/x
3. Step 3: Cross multiply
   3,921.83x = 5,881.18 × 1,729
4. Step 4: Simplify right side
   3,921.83x = 10,168,560.22
5. Step 5: Solve for x
   x = 10,168,560.22/3,921.83
6. Step 6: Final answer
   x = 2,592.81