Finding the Fourth Proportional to 2,929.89, 4,042.25 and 1,811.07

Step by Step Solution

1. Step 1: Write the proportion equation
   2,929.89 : 4,042.25 = 1,811.07 : x
2. Step 2: Convert to fraction form
   2,929.89/4,042.25 = 1,811.07/x
3. Step 3: Cross multiply
   2,929.89x = 4,042.25 × 1,811.07
4. Step 4: Simplify right side
   2,929.89x = 7,320,788.65
5. Step 5: Solve for x
   x = 7,320,788.65/2,929.89
6. Step 6: Final answer
   x = 2,498.66