Finding the Fourth Proportional to 2,557.62, 3,836.58 and 914.34

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.62 : 3,836.58 = 914.34 : x
2. Step 2: Convert to fraction form
   2,557.62/3,836.58 = 914.34/x
3. Step 3: Cross multiply
   2,557.62x = 3,836.58 × 914.34
4. Step 4: Simplify right side
   2,557.62x = 3,507,938.56
5. Step 5: Solve for x
   x = 3,507,938.56/2,557.62
6. Step 6: Final answer
   x = 1,371.56