Finding the Fourth Proportional to 1,926.74, 2,658.89 and 1,087.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.74 : 2,658.89 = 1,087.43 : x
2. Step 2: Convert to fraction form
   1,926.74/2,658.89 = 1,087.43/x
3. Step 3: Cross multiply
   1,926.74x = 2,658.89 × 1,087.43
4. Step 4: Simplify right side
   1,926.74x = 2,891,363.39
5. Step 5: Solve for x
   x = 2,891,363.39/1,926.74
6. Step 6: Final answer
   x = 1,500.65