Finding the Fourth Proportional to 2,557.89, 3,836.82 and 709.01

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.89 : 3,836.82 = 709.01 : x
2. Step 2: Convert to fraction form
   2,557.89/3,836.82 = 709.01/x
3. Step 3: Cross multiply
   2,557.89x = 3,836.82 × 709.01
4. Step 4: Simplify right side
   2,557.89x = 2,720,324.56
5. Step 5: Solve for x
   x = 2,720,324.56/2,557.89
6. Step 6: Final answer
   x = 1,063.50