Finding the Fourth Proportional to 2,156.69, 3,227.13 and 1,765.73

Step by Step Solution

1. Step 1: Write the proportion equation
   2,156.69 : 3,227.13 = 1,765.73 : x
2. Step 2: Convert to fraction form
   2,156.69/3,227.13 = 1,765.73/x
3. Step 3: Cross multiply
   2,156.69x = 3,227.13 × 1,765.73
4. Step 4: Simplify right side
   2,156.69x = 5,698,240.25
5. Step 5: Solve for x
   x = 5,698,240.25/2,156.69
6. Step 6: Final answer
   x = 2,642.12