Finding the Fourth Proportional to 1,944.61, 2,682.42 and 1,306.78

Step by Step Solution

1. Step 1: Write the proportion equation
   1,944.61 : 2,682.42 = 1,306.78 : x
2. Step 2: Convert to fraction form
   1,944.61/2,682.42 = 1,306.78/x
3. Step 3: Cross multiply
   1,944.61x = 2,682.42 × 1,306.78
4. Step 4: Simplify right side
   1,944.61x = 3,505,336.29
5. Step 5: Solve for x
   x = 3,505,336.29/1,944.61
6. Step 6: Final answer
   x = 1,802.59