Finding the Fourth Proportional to 2,556.50, 3,812.37 and 2,533.15

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.50 : 3,812.37 = 2,533.15 : x
2. Step 2: Convert to fraction form
   2,556.50/3,812.37 = 2,533.15/x
3. Step 3: Cross multiply
   2,556.50x = 3,812.37 × 2,533.15
4. Step 4: Simplify right side
   2,556.50x = 9,657,295.50
5. Step 5: Solve for x
   x = 9,657,295.50/2,556.50
6. Step 6: Final answer
   x = 3,777.55