Finding the Fourth Proportional to 2,562.12, 3,843.54 and 830.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,562.12 : 3,843.54 = 830.34 : x
2. Step 2: Convert to fraction form
   2,562.12/3,843.54 = 830.34/x
3. Step 3: Cross multiply
   2,562.12x = 3,843.54 × 830.34
4. Step 4: Simplify right side
   2,562.12x = 3,191,445.00
5. Step 5: Solve for x
   x = 3,191,445.00/2,562.12
6. Step 6: Final answer
   x = 1,245.63