Finding the Fourth Proportional to 2,177.71, 3,005.27 and 1,282.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,177.71 : 3,005.27 = 1,282.05 : x
2. Step 2: Convert to fraction form
   2,177.71/3,005.27 = 1,282.05/x
3. Step 3: Cross multiply
   2,177.71x = 3,005.27 × 1,282.05
4. Step 4: Simplify right side
   2,177.71x = 3,852,906.40
5. Step 5: Solve for x
   x = 3,852,906.40/2,177.71
6. Step 6: Final answer
   x = 1,769.25