Finding the Fourth Proportional to 2,552.91, 3,830.37 and 909.51

Step by Step Solution

1. Step 1: Write the proportion equation
   2,552.91 : 3,830.37 = 909.51 : x
2. Step 2: Convert to fraction form
   2,552.91/3,830.37 = 909.51/x
3. Step 3: Cross multiply
   2,552.91x = 3,830.37 × 909.51
4. Step 4: Simplify right side
   2,552.91x = 3,483,759.82
5. Step 5: Solve for x
   x = 3,483,759.82/2,552.91
6. Step 6: Final answer
   x = 1,364.62