Finding the Fourth Proportional to 2,177.79, 3,005.27 and 1,293.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,177.79 : 3,005.27 = 1,293.57 : x
2. Step 2: Convert to fraction form
   2,177.79/3,005.27 = 1,293.57/x
3. Step 3: Cross multiply
   2,177.79x = 3,005.27 × 1,293.57
4. Step 4: Simplify right side
   2,177.79x = 3,887,520.65
5. Step 5: Solve for x
   x = 3,887,520.65/2,177.79
6. Step 6: Final answer
   x = 1,785.08