Finding the Fourth Proportional to 2,736.36, 4,104.72 and 981.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,736.36 : 4,104.72 = 981.72 : x
2. Step 2: Convert to fraction form
   2,736.36/4,104.72 = 981.72/x
3. Step 3: Cross multiply
   2,736.36x = 4,104.72 × 981.72
4. Step 4: Simplify right side
   2,736.36x = 4,029,685.72
5. Step 5: Solve for x
   x = 4,029,685.72/2,736.36
6. Step 6: Final answer
   x = 1,472.64