Finding the Fourth Proportional to 1,994.66, 2,752.89 and 1,208.72

Step by Step Solution

1. Step 1: Write the proportion equation
   1,994.66 : 2,752.89 = 1,208.72 : x
2. Step 2: Convert to fraction form
   1,994.66/2,752.89 = 1,208.72/x
3. Step 3: Cross multiply
   1,994.66x = 2,752.89 × 1,208.72
4. Step 4: Simplify right side
   1,994.66x = 3,327,473.20
5. Step 5: Solve for x
   x = 3,327,473.20/1,994.66
6. Step 6: Final answer
   x = 1,668.19