Finding the Fourth Proportional to 1,662.69, 2,294.54 and 999.41

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.69 : 2,294.54 = 999.41 : x
2. Step 2: Convert to fraction form
   1,662.69/2,294.54 = 999.41/x
3. Step 3: Cross multiply
   1,662.69x = 2,294.54 × 999.41
4. Step 4: Simplify right side
   1,662.69x = 2,293,190.71
5. Step 5: Solve for x
   x = 2,293,190.71/1,662.69
6. Step 6: Final answer
   x = 1,379.21