Finding the Fourth Proportional to 2,298.43, 3,446.73 and 836.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,298.43 : 3,446.73 = 836.78 : x
2. Step 2: Convert to fraction form
   2,298.43/3,446.73 = 836.78/x
3. Step 3: Cross multiply
   2,298.43x = 3,446.73 × 836.78
4. Step 4: Simplify right side
   2,298.43x = 2,884,154.73
5. Step 5: Solve for x
   x = 2,884,154.73/2,298.43
6. Step 6: Final answer
   x = 1,254.84