Finding the Fourth Proportional to 2,177.94, 3,004.56 and 1,645.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,177.94 : 3,004.56 = 1,645.86 : x
2. Step 2: Convert to fraction form
   2,177.94/3,004.56 = 1,645.86/x
3. Step 3: Cross multiply
   2,177.94x = 3,004.56 × 1,645.86
4. Step 4: Simplify right side
   2,177.94x = 4,945,085.12
5. Step 5: Solve for x
   x = 4,945,085.12/2,177.94
6. Step 6: Final answer
   x = 2,270.53