Finding the Fourth Proportional to 2,926.29, 4,042.69 and 1,920.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,926.29 : 4,042.69 = 1,920.39 : x
2. Step 2: Convert to fraction form
   2,926.29/4,042.69 = 1,920.39/x
3. Step 3: Cross multiply
   2,926.29x = 4,042.69 × 1,920.39
4. Step 4: Simplify right side
   2,926.29x = 7,763,521.49
5. Step 5: Solve for x
   x = 7,763,521.49/2,926.29
6. Step 6: Final answer
   x = 2,653.02