Finding the Fourth Proportional to 2,810.34, 4,216.33 and 835.99

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810.34 : 4,216.33 = 835.99 : x
2. Step 2: Convert to fraction form
   2,810.34/4,216.33 = 835.99/x
3. Step 3: Cross multiply
   2,810.34x = 4,216.33 × 835.99
4. Step 4: Simplify right side
   2,810.34x = 3,524,800.22
5. Step 5: Solve for x
   x = 3,524,800.22/2,810.34
6. Step 6: Final answer
   x = 1,254.23