Finding the Fourth Proportional to 1,957.72, 2,701.54 and 1,171.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,957.72 : 2,701.54 = 1,171.76 : x
2. Step 2: Convert to fraction form
   1,957.72/2,701.54 = 1,171.76/x
3. Step 3: Cross multiply
   1,957.72x = 2,701.54 × 1,171.76
4. Step 4: Simplify right side
   1,957.72x = 3,165,556.51
5. Step 5: Solve for x
   x = 3,165,556.51/1,957.72
6. Step 6: Final answer
   x = 1,616.96