Finding the Fourth Proportional to 2,550.52, 3,826.38 and 907.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,550.52 : 3,826.38 = 907.21 : x
2. Step 2: Convert to fraction form
   2,550.52/3,826.38 = 907.21/x
3. Step 3: Cross multiply
   2,550.52x = 3,826.38 × 907.21
4. Step 4: Simplify right side
   2,550.52x = 3,471,311.07
5. Step 5: Solve for x
   x = 3,471,311.07/2,550.52
6. Step 6: Final answer
   x = 1,361.02