Finding the Fourth Proportional to 2,810.28, 4,214.61 and 835.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,810.28 : 4,214.61 = 835.82 : x
2. Step 2: Convert to fraction form
   2,810.28/4,214.61 = 835.82/x
3. Step 3: Cross multiply
   2,810.28x = 4,214.61 × 835.82
4. Step 4: Simplify right side
   2,810.28x = 3,522,663.78
5. Step 5: Solve for x
   x = 3,522,663.78/2,810.28
6. Step 6: Final answer
   x = 1,253.49