Finding the Fourth Proportional to 2,557.31, 3,836.16 and 914.04

Step by Step Solution

1. Step 1: Write the proportion equation
   2,557.31 : 3,836.16 = 914.04 : x
2. Step 2: Convert to fraction form
   2,557.31/3,836.16 = 914.04/x
3. Step 3: Cross multiply
   2,557.31x = 3,836.16 × 914.04
4. Step 4: Simplify right side
   2,557.31x = 3,506,403.69
5. Step 5: Solve for x
   x = 3,506,403.69/2,557.31
6. Step 6: Final answer
   x = 1,371.13