Finding the Fourth Proportional to 1,761.67, 2,431.15 and 965.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,761.67 : 2,431.15 = 965.03 : x
2. Step 2: Convert to fraction form
   1,761.67/2,431.15 = 965.03/x
3. Step 3: Cross multiply
   1,761.67x = 2,431.15 × 965.03
4. Step 4: Simplify right side
   1,761.67x = 2,346,127.86
5. Step 5: Solve for x
   x = 2,346,127.86/1,761.67
6. Step 6: Final answer
   x = 1,331.76