Finding the Fourth Proportional to 2,874.75, 3,967.71 and 1,878.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,874.75 : 3,967.71 = 1,878.31 : x
2. Step 2: Convert to fraction form
   2,874.75/3,967.71 = 1,878.31/x
3. Step 3: Cross multiply
   2,874.75x = 3,967.71 × 1,878.31
4. Step 4: Simplify right side
   2,874.75x = 7,452,589.37
5. Step 5: Solve for x
   x = 7,452,589.37/2,874.75
6. Step 6: Final answer
   x = 2,592.43