Finding the Fourth Proportional to 2,624.98, 3,936.46 and 869.45

Step by Step Solution

1. Step 1: Write the proportion equation
   2,624.98 : 3,936.46 = 869.45 : x
2. Step 2: Convert to fraction form
   2,624.98/3,936.46 = 869.45/x
3. Step 3: Cross multiply
   2,624.98x = 3,936.46 × 869.45
4. Step 4: Simplify right side
   2,624.98x = 3,422,555.15
5. Step 5: Solve for x
   x = 3,422,555.15/2,624.98
6. Step 6: Final answer
   x = 1,303.84