Finding the Fourth Proportional to 2,567.55, 3,851.60 and 835.77

Step by Step Solution

1. Step 1: Write the proportion equation
   2,567.55 : 3,851.60 = 835.77 : x
2. Step 2: Convert to fraction form
   2,567.55/3,851.60 = 835.77/x
3. Step 3: Cross multiply
   2,567.55x = 3,851.60 × 835.77
4. Step 4: Simplify right side
   2,567.55x = 3,219,047.55
5. Step 5: Solve for x
   x = 3,219,047.55/2,567.55
6. Step 6: Final answer
   x = 1,253.74