Finding the Fourth Proportional to 2,543.94, 3,814.66 and 900.25

Step by Step Solution

1. Step 1: Write the proportion equation
   2,543.94 : 3,814.66 = 900.25 : x
2. Step 2: Convert to fraction form
   2,543.94/3,814.66 = 900.25/x
3. Step 3: Cross multiply
   2,543.94x = 3,814.66 × 900.25
4. Step 4: Simplify right side
   2,543.94x = 3,434,139.25
5. Step 5: Solve for x
   x = 3,434,139.25/2,543.94
6. Step 6: Final answer
   x = 1,349.93