Finding the Fourth Proportional to 1,165.31, 1,755.98 and 964.39

Step by Step Solution

1. Step 1: Write the proportion equation
   1,165.31 : 1,755.98 = 964.39 : x
2. Step 2: Convert to fraction form
   1,165.31/1,755.98 = 964.39/x
3. Step 3: Cross multiply
   1,165.31x = 1,755.98 × 964.39
4. Step 4: Simplify right side
   1,165.31x = 1,693,447.57
5. Step 5: Solve for x
   x = 1,693,447.57/1,165.31
6. Step 6: Final answer
   x = 1,453.22