Finding the Fourth Proportional to 3,972.31, 5,484.31 and 2,556.53

Step by Step Solution

1. Step 1: Write the proportion equation
   3,972.31 : 5,484.31 = 2,556.53 : x
2. Step 2: Convert to fraction form
   3,972.31/5,484.31 = 2,556.53/x
3. Step 3: Cross multiply
   3,972.31x = 5,484.31 × 2,556.53
4. Step 4: Simplify right side
   3,972.31x = 14,020,789.80
5. Step 5: Solve for x
   x = 14,020,789.80/3,972.31
6. Step 6: Final answer
   x = 3,529.63