Finding the Fourth Proportional to 2,761.09, 4,140.82 and 1,029.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,761.09 : 4,140.82 = 1,029.31 : x
2. Step 2: Convert to fraction form
   2,761.09/4,140.82 = 1,029.31/x
3. Step 3: Cross multiply
   2,761.09x = 4,140.82 × 1,029.31
4. Step 4: Simplify right side
   2,761.09x = 4,262,187.43
5. Step 5: Solve for x
   x = 4,262,187.43/2,761.09
6. Step 6: Final answer
   x = 1,543.66