Finding the Fourth Proportional to 2,823.98, 4,236.41 and 875.72

Step by Step Solution

1. Step 1: Write the proportion equation
   2,823.98 : 4,236.41 = 875.72 : x
2. Step 2: Convert to fraction form
   2,823.98/4,236.41 = 875.72/x
3. Step 3: Cross multiply
   2,823.98x = 4,236.41 × 875.72
4. Step 4: Simplify right side
   2,823.98x = 3,709,921.75
5. Step 5: Solve for x
   x = 3,709,921.75/2,823.98
6. Step 6: Final answer
   x = 1,313.72