Finding the Fourth Proportional to 2,877.32, 4,316.89 and 1,028.39

Step by Step Solution

1. Step 1: Write the proportion equation
   2,877.32 : 4,316.89 = 1,028.39 : x
2. Step 2: Convert to fraction form
   2,877.32/4,316.89 = 1,028.39/x
3. Step 3: Cross multiply
   2,877.32x = 4,316.89 × 1,028.39
4. Step 4: Simplify right side
   2,877.32x = 4,439,445.67
5. Step 5: Solve for x
   x = 4,439,445.67/2,877.32
6. Step 6: Final answer
   x = 1,542.91