Finding the Fourth Proportional to 1,960.72, 2,705.69 and 1,174.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,960.72 : 2,705.69 = 1,174.84 : x
2. Step 2: Convert to fraction form
   1,960.72/2,705.69 = 1,174.84/x
3. Step 3: Cross multiply
   1,960.72x = 2,705.69 × 1,174.84
4. Step 4: Simplify right side
   1,960.72x = 3,178,752.84
5. Step 5: Solve for x
   x = 3,178,752.84/1,960.72
6. Step 6: Final answer
   x = 1,621.22