Finding the Fourth Proportional to 2,257.04, 3,111.82 and 1,878.91

Step by Step Solution

1. Step 1: Write the proportion equation
   2,257.04 : 3,111.82 = 1,878.91 : x
2. Step 2: Convert to fraction form
   2,257.04/3,111.82 = 1,878.91/x
3. Step 3: Cross multiply
   2,257.04x = 3,111.82 × 1,878.91
4. Step 4: Simplify right side
   2,257.04x = 5,846,817.24
5. Step 5: Solve for x
   x = 5,846,817.24/2,257.04
6. Step 6: Final answer
   x = 2,590.48