Finding the Fourth Proportional to 2,546.52, 3,820.38 and 903.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,546.52 : 3,820.38 = 903.21 : x
2. Step 2: Convert to fraction form
   2,546.52/3,820.38 = 903.21/x
3. Step 3: Cross multiply
   2,546.52x = 3,820.38 × 903.21
4. Step 4: Simplify right side
   2,546.52x = 3,450,586.32
5. Step 5: Solve for x
   x = 3,450,586.32/2,546.52
6. Step 6: Final answer
   x = 1,355.02