Finding the Fourth Proportional to 1,966.18, 2,712.72 and 1,169.14

Step by Step Solution

1. Step 1: Write the proportion equation
   1,966.18 : 2,712.72 = 1,169.14 : x
2. Step 2: Convert to fraction form
   1,966.18/2,712.72 = 1,169.14/x
3. Step 3: Cross multiply
   1,966.18x = 2,712.72 × 1,169.14
4. Step 4: Simplify right side
   1,966.18x = 3,171,549.46
5. Step 5: Solve for x
   x = 3,171,549.46/1,966.18
6. Step 6: Final answer
   x = 1,613.05