Finding the Fourth Proportional to 2,256.42, 3,108.47 and 1,855.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,256.42 : 3,108.47 = 1,855.47 : x
2. Step 2: Convert to fraction form
   2,256.42/3,108.47 = 1,855.47/x
3. Step 3: Cross multiply
   2,256.42x = 3,108.47 × 1,855.47
4. Step 4: Simplify right side
   2,256.42x = 5,767,663.55
5. Step 5: Solve for x
   x = 5,767,663.55/2,256.42
6. Step 6: Final answer
   x = 2,556.11