Finding the Fourth Proportional to 2,770.37, 4,156.25 and 822.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,770.37 : 4,156.25 = 822.57 : x
2. Step 2: Convert to fraction form
   2,770.37/4,156.25 = 822.57/x
3. Step 3: Cross multiply
   2,770.37x = 4,156.25 × 822.57
4. Step 4: Simplify right side
   2,770.37x = 3,418,802.45
5. Step 5: Solve for x
   x = 3,418,802.45/2,770.37
6. Step 6: Final answer
   x = 1,234.06