Finding the Fourth Proportional to 2,556.23, 3,834.45 and 801.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,556.23 : 3,834.45 = 801.25 : x
2. Step 2: Convert to fraction form
   2,556.23/3,834.45 = 801.25/x
3. Step 3: Cross multiply
   2,556.23x = 3,834.45 × 801.25
4. Step 4: Simplify right side
   2,556.23x = 3,072,343.48
5. Step 5: Solve for x
   x = 3,072,343.48/2,556.23
6. Step 6: Final answer
   x = 1,201.91