Finding the Fourth Proportional to 3,815.71, 5,269.80 and 3,403.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,815.71 : 5,269.80 = 3,403.42 : x
2. Step 2: Convert to fraction form
   3,815.71/5,269.80 = 3,403.42/x
3. Step 3: Cross multiply
   3,815.71x = 5,269.80 × 3,403.42
4. Step 4: Simplify right side
   3,815.71x = 17,935,342.72
5. Step 5: Solve for x
   x = 17,935,342.72/3,815.71
6. Step 6: Final answer
   x = 4,700.39