Finding the Fourth Proportional to 2,575.49, 3,861.52 and 1,326.85

Step by Step Solution

1. Step 1: Write the proportion equation
   2,575.49 : 3,861.52 = 1,326.85 : x
2. Step 2: Convert to fraction form
   2,575.49/3,861.52 = 1,326.85/x
3. Step 3: Cross multiply
   2,575.49x = 3,861.52 × 1,326.85
4. Step 4: Simplify right side
   2,575.49x = 5,123,644.84
5. Step 5: Solve for x
   x = 5,123,644.84/2,575.49
6. Step 6: Final answer
   x = 1,989.39