Finding the Fourth Proportional to 2,873.56, 3,961.02 and 1,878.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,873.56 : 3,961.02 = 1,878.34 : x
2. Step 2: Convert to fraction form
   2,873.56/3,961.02 = 1,878.34/x
3. Step 3: Cross multiply
   2,873.56x = 3,961.02 × 1,878.34
4. Step 4: Simplify right side
   2,873.56x = 7,440,142.31
5. Step 5: Solve for x
   x = 7,440,142.31/2,873.56
6. Step 6: Final answer
   x = 2,589.17