Finding the Fourth Proportional to 1,808.69, 2,712.83 and 1,227.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,808.69 : 2,712.83 = 1,227.43 : x
2. Step 2: Convert to fraction form
   1,808.69/2,712.83 = 1,227.43/x
3. Step 3: Cross multiply
   1,808.69x = 2,712.83 × 1,227.43
4. Step 4: Simplify right side
   1,808.69x = 3,329,805.21
5. Step 5: Solve for x
   x = 3,329,805.21/1,808.69
6. Step 6: Final answer
   x = 1,841.00