Finding the Fourth Proportional to 1,926.29, 2,658.27 and 1,042.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,926.29 : 2,658.27 = 1,042.09 : x
2. Step 2: Convert to fraction form
   1,926.29/2,658.27 = 1,042.09/x
3. Step 3: Cross multiply
   1,926.29x = 2,658.27 × 1,042.09
4. Step 4: Simplify right side
   1,926.29x = 2,770,152.54
5. Step 5: Solve for x
   x = 2,770,152.54/1,926.29
6. Step 6: Final answer
   x = 1,438.08