Finding the Fourth Proportional to 3,938.83, 5,909.60 and 1,343.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,938.83 : 5,909.60 = 1,343.59 : x
2. Step 2: Convert to fraction form
   3,938.83/5,909.60 = 1,343.59/x
3. Step 3: Cross multiply
   3,938.83x = 5,909.60 × 1,343.59
4. Step 4: Simplify right side
   3,938.83x = 7,940,079.46
5. Step 5: Solve for x
   x = 7,940,079.46/3,938.83
6. Step 6: Final answer
   x = 2,015.85