Finding the Fourth Proportional to 2,658.31, 3,983.82 and 1,357.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,658.31 : 3,983.82 = 1,357.05 : x
2. Step 2: Convert to fraction form
   2,658.31/3,983.82 = 1,357.05/x
3. Step 3: Cross multiply
   2,658.31x = 3,983.82 × 1,357.05
4. Step 4: Simplify right side
   2,658.31x = 5,406,236.15
5. Step 5: Solve for x
   x = 5,406,236.15/2,658.31
6. Step 6: Final answer
   x = 2,033.71