Finding the Fourth Proportional to 2,179.76, 2,998.76 and 1,926.42

Step by Step Solution

1. Step 1: Write the proportion equation
   2,179.76 : 2,998.76 = 1,926.42 : x
2. Step 2: Convert to fraction form
   2,179.76/2,998.76 = 1,926.42/x
3. Step 3: Cross multiply
   2,179.76x = 2,998.76 × 1,926.42
4. Step 4: Simplify right side
   2,179.76x = 5,776,871.24
5. Step 5: Solve for x
   x = 5,776,871.24/2,179.76
6. Step 6: Final answer
   x = 2,650.23