Finding the Fourth Proportional to 2,229.46, 3,331.42 and 1,699.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,229.46 : 3,331.42 = 1,699.45 : x
2. Step 2: Convert to fraction form
   2,229.46/3,331.42 = 1,699.45/x
3. Step 3: Cross multiply
   2,229.46x = 3,331.42 × 1,699.45
4. Step 4: Simplify right side
   2,229.46x = 5,661,581.72
5. Step 5: Solve for x
   x = 5,661,581.72/2,229.46
6. Step 6: Final answer
   x = 2,539.44