Finding the Fourth Proportional to 1,965.89, 2,714.31 and 1,304.12

Step by Step Solution

1. Step 1: Write the proportion equation
   1,965.89 : 2,714.31 = 1,304.12 : x
2. Step 2: Convert to fraction form
   1,965.89/2,714.31 = 1,304.12/x
3. Step 3: Cross multiply
   1,965.89x = 2,714.31 × 1,304.12
4. Step 4: Simplify right side
   1,965.89x = 3,539,772.39
5. Step 5: Solve for x
   x = 3,539,772.39/1,965.89
6. Step 6: Final answer
   x = 1,800.60