Finding the Fourth Proportional to 2,311.56, 3,465.83 and 830.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,311.56 : 3,465.83 = 830.04 : x
2. Step 2: Convert to fraction form
   2,311.56/3,465.83 = 830.04/x
3. Step 3: Cross multiply
   2,311.56x = 3,465.83 × 830.04
4. Step 4: Simplify right side
   2,311.56x = 2,876,773.38
5. Step 5: Solve for x
   x = 2,876,773.38/2,311.56
6. Step 6: Final answer
   x = 1,244.52