Finding the Fourth Proportional to 2,513.58, 3,769.83 and 869.82

Step by Step Solution

1. Step 1: Write the proportion equation
   2,513.58 : 3,769.83 = 869.82 : x
2. Step 2: Convert to fraction form
   2,513.58/3,769.83 = 869.82/x
3. Step 3: Cross multiply
   2,513.58x = 3,769.83 × 869.82
4. Step 4: Simplify right side
   2,513.58x = 3,279,073.53
5. Step 5: Solve for x
   x = 3,279,073.53/2,513.58
6. Step 6: Final answer
   x = 1,304.54