Finding the Fourth Proportional to 2,475.44, 3,710.83 and 830.83

Step by Step Solution

1. Step 1: Write the proportion equation
   2,475.44 : 3,710.83 = 830.83 : x
2. Step 2: Convert to fraction form
   2,475.44/3,710.83 = 830.83/x
3. Step 3: Cross multiply
   2,475.44x = 3,710.83 × 830.83
4. Step 4: Simplify right side
   2,475.44x = 3,083,080.24
5. Step 5: Solve for x
   x = 3,083,080.24/2,475.44
6. Step 6: Final answer
   x = 1,245.47