Finding the Fourth Proportional to 2,556.88, 3,838.56 and 2,174.56

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.88 : 3,838.56 = 2,174.56 : x
2. Step 2: Convert to fraction form
   2,556.88/3,838.56 = 2,174.56/x
3. Step 3: Cross multiply
   2,556.88x = 3,838.56 × 2,174.56
4. Step 4: Simplify right side
   2,556.88x = 8,347,179.03
5. Step 5: Solve for x
   x = 8,347,179.03/2,556.88
6. Step 6: Final answer
   x = 3,264.60