Finding the Fourth Proportional to 1,662.54, 2,294.22 and 999.06

Step by Step Solution

1. Step 1: Write the proportion equation
   1,662.54 : 2,294.22 = 999.06 : x
2. Step 2: Convert to fraction form
   1,662.54/2,294.22 = 999.06/x
3. Step 3: Cross multiply
   1,662.54x = 2,294.22 × 999.06
4. Step 4: Simplify right side
   1,662.54x = 2,292,063.43
5. Step 5: Solve for x
   x = 2,292,063.43/1,662.54
6. Step 6: Final answer
   x = 1,378.65