Finding the Fourth Proportional to 3,930.33, 5,423.86 and 2,358.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,930.33 : 5,423.86 = 2,358.42 : x
2. Step 2: Convert to fraction form
   3,930.33/5,423.86 = 2,358.42/x
3. Step 3: Cross multiply
   3,930.33x = 5,423.86 × 2,358.42
4. Step 4: Simplify right side
   3,930.33x = 12,791,739.75
5. Step 5: Solve for x
   x = 12,791,739.75/3,930.33
6. Step 6: Final answer
   x = 3,254.62