Finding the Fourth Proportional to 2,719.42, 4,076.90 and 869.38

Step by Step Solution

1. Step 1: Write the proportion equation
   2,719.42 : 4,076.90 = 869.38 : x
2. Step 2: Convert to fraction form
   2,719.42/4,076.90 = 869.38/x
3. Step 3: Cross multiply
   2,719.42x = 4,076.90 × 869.38
4. Step 4: Simplify right side
   2,719.42x = 3,544,375.32
5. Step 5: Solve for x
   x = 3,544,375.32/2,719.42
6. Step 6: Final answer
   x = 1,303.36