Finding the Fourth Proportional to 2,562.32, 3,843.96 and 830.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,562.32 : 3,843.96 = 830.72 : x
2. Step 2: Convert to fraction form
   2,562.32/3,843.96 = 830.72/x
3. Step 3: Cross multiply
   2,562.32x = 3,843.96 × 830.72
4. Step 4: Simplify right side
   2,562.32x = 3,193,254.45
5. Step 5: Solve for x
   x = 3,193,254.45/2,562.32
6. Step 6: Final answer
   x = 1,246.24