Finding the Fourth Proportional to 2,878.56, 3,974.22 and 2,283.48

Step by Step Solution

1. Step 1: Write the proportion equation
   2,878.56 : 3,974.22 = 2,283.48 : x
2. Step 2: Convert to fraction form
   2,878.56/3,974.22 = 2,283.48/x
3. Step 3: Cross multiply
   2,878.56x = 3,974.22 × 2,283.48
4. Step 4: Simplify right side
   2,878.56x = 9,075,051.89
5. Step 5: Solve for x
   x = 9,075,051.89/2,878.56
6. Step 6: Final answer
   x = 3,152.64