Finding the Fourth Proportional to 2,547.35, 3,820.32 and 903.68

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.35 : 3,820.32 = 903.68 : x
2. Step 2: Convert to fraction form
   2,547.35/3,820.32 = 903.68/x
3. Step 3: Cross multiply
   2,547.35x = 3,820.32 × 903.68
4. Step 4: Simplify right side
   2,547.35x = 3,452,346.78
5. Step 5: Solve for x
   x = 3,452,346.78/2,547.35
6. Step 6: Final answer
   x = 1,355.27