Finding the Fourth Proportional to 2,796.01, 4,193.57 and 821.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,796.01 : 4,193.57 = 821.18 : x
2. Step 2: Convert to fraction form
   2,796.01/4,193.57 = 821.18/x
3. Step 3: Cross multiply
   2,796.01x = 4,193.57 × 821.18
4. Step 4: Simplify right side
   2,796.01x = 3,443,688.35
5. Step 5: Solve for x
   x = 3,443,688.35/2,796.01
6. Step 6: Final answer
   x = 1,231.64