Finding the Fourth Proportional to 3,624.81, 5,429.61 and 2,307.89

Step by Step Solution

1. Step 1: Write the proportion equation
   3,624.81 : 5,429.61 = 2,307.89 : x
2. Step 2: Convert to fraction form
   3,624.81/5,429.61 = 2,307.89/x
3. Step 3: Cross multiply
   3,624.81x = 5,429.61 × 2,307.89
4. Step 4: Simplify right side
   3,624.81x = 12,530,942.62
5. Step 5: Solve for x
   x = 12,530,942.62/3,624.81
6. Step 6: Final answer
   x = 3,456.99