Finding the Fourth Proportional to 2,221.69, 3,065.89 and 1,226.94

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.69 : 3,065.89 = 1,226.94 : x
2. Step 2: Convert to fraction form
   2,221.69/3,065.89 = 1,226.94/x
3. Step 3: Cross multiply
   2,221.69x = 3,065.89 × 1,226.94
4. Step 4: Simplify right side
   2,221.69x = 3,761,663.08
5. Step 5: Solve for x
   x = 3,761,663.08/2,221.69
6. Step 6: Final answer
   x = 1,693.16