Finding the Fourth Proportional to 2,878.20, 4,316.79 and 1,029.33

Step by Step Solution

1. Step 1: Write the proportion equation
   2,878.20 : 4,316.79 = 1,029.33 : x
2. Step 2: Convert to fraction form
   2,878.20/4,316.79 = 1,029.33/x
3. Step 3: Cross multiply
   2,878.20x = 4,316.79 × 1,029.33
4. Step 4: Simplify right side
   2,878.20x = 4,443,401.45
5. Step 5: Solve for x
   x = 4,443,401.45/2,878.20
6. Step 6: Final answer
   x = 1,543.81