Finding the Fourth Proportional to 1,707.30, 2,356.20 and 961.34

Step by Step Solution

1. Step 1: Write the proportion equation
   1,707.30 : 2,356.20 = 961.34 : x
2. Step 2: Convert to fraction form
   1,707.30/2,356.20 = 961.34/x
3. Step 3: Cross multiply
   1,707.30x = 2,356.20 × 961.34
4. Step 4: Simplify right side
   1,707.30x = 2,265,109.31
5. Step 5: Solve for x
   x = 2,265,109.31/1,707.30
6. Step 6: Final answer
   x = 1,326.72