Finding the Fourth Proportional to 2,039.69, 3,059.53 and 807.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,039.69 : 3,059.53 = 807.39 : x
2. Step 2: Convert to fraction form
   2,039.69/3,059.53 = 807.39/x
3. Step 3: Cross multiply
   2,039.69x = 3,059.53 × 807.39
4. Step 4: Simplify right side
   2,039.69x = 2,470,231.91
5. Step 5: Solve for x
   x = 2,470,231.91/2,039.69
6. Step 6: Final answer
   x = 1,211.08