Finding the Fourth Proportional to 2,722.80, 4,081.51 and 1,314.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,722.80 : 4,081.51 = 1,314.62 : x
2. Step 2: Convert to fraction form
   2,722.80/4,081.51 = 1,314.62/x
3. Step 3: Cross multiply
   2,722.80x = 4,081.51 × 1,314.62
4. Step 4: Simplify right side
   2,722.80x = 5,365,631.39
5. Step 5: Solve for x
   x = 5,365,631.39/2,722.80
6. Step 6: Final answer
   x = 1,970.63