Finding the Fourth Proportional to 1,673.58, 2,309.86 and 965.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,673.58 : 2,309.86 = 965.88 : x
2. Step 2: Convert to fraction form
   1,673.58/2,309.86 = 965.88/x
3. Step 3: Cross multiply
   1,673.58x = 2,309.86 × 965.88
4. Step 4: Simplify right side
   1,673.58x = 2,231,031.20
5. Step 5: Solve for x
   x = 2,231,031.20/1,673.58
6. Step 6: Final answer
   x = 1,333.09