Finding the Fourth Proportional to 3,557.71, 4,909.17 and 2,065.42

Step by Step Solution

1. Step 1: Write the proportion equation
   3,557.71 : 4,909.17 = 2,065.42 : x
2. Step 2: Convert to fraction form
   3,557.71/4,909.17 = 2,065.42/x
3. Step 3: Cross multiply
   3,557.71x = 4,909.17 × 2,065.42
4. Step 4: Simplify right side
   3,557.71x = 10,139,497.90
5. Step 5: Solve for x
   x = 10,139,497.90/3,557.71
6. Step 6: Final answer
   x = 2,850.01