Finding the Fourth Proportional to 2,134.88, 3,200.49 and 836.05

Step by Step Solution

1. Step 1: Write the proportion equation
   2,134.88 : 3,200.49 = 836.05 : x
2. Step 2: Convert to fraction form
   2,134.88/3,200.49 = 836.05/x
3. Step 3: Cross multiply
   2,134.88x = 3,200.49 × 836.05
4. Step 4: Simplify right side
   2,134.88x = 2,675,769.66
5. Step 5: Solve for x
   x = 2,675,769.66/2,134.88
6. Step 6: Final answer
   x = 1,253.36