Finding the Fourth Proportional to 1,926.10, 2,658.12 and 1,086.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.10 : 2,658.12 = 1,086.76 : x
2. Step 2: Convert to fraction form
   1,926.10/2,658.12 = 1,086.76/x
3. Step 3: Cross multiply
   1,926.10x = 2,658.12 × 1,086.76
4. Step 4: Simplify right side
   1,926.10x = 2,888,738.49
5. Step 5: Solve for x
   x = 2,888,738.49/1,926.10
6. Step 6: Final answer
   x = 1,499.79