Finding the Fourth Proportional to 2,547.32, 3,820.50 and 903.89

Step by Step Solution

1. Step 1: Write the proportion equation
   2,547.32 : 3,820.50 = 903.89 : x
2. Step 2: Convert to fraction form
   2,547.32/3,820.50 = 903.89/x
3. Step 3: Cross multiply
   2,547.32x = 3,820.50 × 903.89
4. Step 4: Simplify right side
   2,547.32x = 3,453,321.30
5. Step 5: Solve for x
   x = 3,453,321.30/2,547.32
6. Step 6: Final answer
   x = 1,355.67