Finding the Fourth Proportional to 1,709.94, 2,359.98 and 964.20

Step by Step Solution

1. Step 1: Write the proportion equation
   1,709.94 : 2,359.98 = 964.20 : x
2. Step 2: Convert to fraction form
   1,709.94/2,359.98 = 964.20/x
3. Step 3: Cross multiply
   1,709.94x = 2,359.98 × 964.20
4. Step 4: Simplify right side
   1,709.94x = 2,275,492.72
5. Step 5: Solve for x
   x = 2,275,492.72/1,709.94
6. Step 6: Final answer
   x = 1,330.74