Finding the Fourth Proportional to 1,706.89, 2,355.73 and 960.99

Step by Step Solution

1. Step 1: Write the proportion equation
   1,706.89 : 2,355.73 = 960.99 : x
2. Step 2: Convert to fraction form
   1,706.89/2,355.73 = 960.99/x
3. Step 3: Cross multiply
   1,706.89x = 2,355.73 × 960.99
4. Step 4: Simplify right side
   1,706.89x = 2,263,830.57
5. Step 5: Solve for x
   x = 2,263,830.57/1,706.89
6. Step 6: Final answer
   x = 1,326.29