Finding the Fourth Proportional to 2,712.42, 4,069.10 and 1,326.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,712.42 : 4,069.10 = 1,326.71 : x
2. Step 2: Convert to fraction form
   2,712.42/4,069.10 = 1,326.71/x
3. Step 3: Cross multiply
   2,712.42x = 4,069.10 × 1,326.71
4. Step 4: Simplify right side
   2,712.42x = 5,398,529.15
5. Step 5: Solve for x
   x = 5,398,529.15/2,712.42
6. Step 6: Final answer
   x = 1,990.30