Finding the Fourth Proportional to 2,567.80, 3,851.98 and 836.02

Step by Step Solution

1. Step 1: Write the proportion equation
   2,567.80 : 3,851.98 = 836.02 : x
2. Step 2: Convert to fraction form
   2,567.80/3,851.98 = 836.02/x
3. Step 3: Cross multiply
   2,567.80x = 3,851.98 × 836.02
4. Step 4: Simplify right side
   2,567.80x = 3,220,332.32
5. Step 5: Solve for x
   x = 3,220,332.32/2,567.80
6. Step 6: Final answer
   x = 1,254.12