Finding the Fourth Proportional to 2,599.79, 3,900.24 and 844.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,599.79 : 3,900.24 = 844.89 : x
2. Step 2: Convert to fraction form
   2,599.79/3,900.24 = 844.89/x
3. Step 3: Cross multiply
   2,599.79x = 3,900.24 × 844.89
4. Step 4: Simplify right side
   2,599.79x = 3,295,273.77
5. Step 5: Solve for x
   x = 3,295,273.77/2,599.79
6. Step 6: Final answer
   x = 1,267.52