Finding the Fourth Proportional to 1,961.36, 2,705.56 and 1,174.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,961.36 : 2,705.56 = 1,174.96 : x
2. Step 2: Convert to fraction form
   1,961.36/2,705.56 = 1,174.96/x
3. Step 3: Cross multiply
   1,961.36x = 2,705.56 × 1,174.96
4. Step 4: Simplify right side
   1,961.36x = 3,178,924.78
5. Step 5: Solve for x
   x = 3,178,924.78/1,961.36
6. Step 6: Final answer
   x = 1,620.78