Finding the Fourth Proportional to 2,546.33, 3,820.78 and 987.41

Step by Step Solution

1. Step 1: Write the proportion equation
   2,546.33 : 3,820.78 = 987.41 : x
2. Step 2: Convert to fraction form
   2,546.33/3,820.78 = 987.41/x
3. Step 3: Cross multiply
   2,546.33x = 3,820.78 × 987.41
4. Step 4: Simplify right side
   2,546.33x = 3,772,676.38
5. Step 5: Solve for x
   x = 3,772,676.38/2,546.33
6. Step 6: Final answer
   x = 1,481.61