Finding the Fourth Proportional to 2,108.76, 3,156.66 and 1,797.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,108.76 : 3,156.66 = 1,797.72 : x
2. Step 2: Convert to fraction form
   2,108.76/3,156.66 = 1,797.72/x
3. Step 3: Cross multiply
   2,108.76x = 3,156.66 × 1,797.72
4. Step 4: Simplify right side
   2,108.76x = 5,674,790.82
5. Step 5: Solve for x
   x = 5,674,790.82/2,108.76
6. Step 6: Final answer
   x = 2,691.06