Finding the Fourth Proportional to 2,637.34, 3,955.98 and 1,078.18

Step by Step Solution

1. Step 1: Write the proportion equation
   2,637.34 : 3,955.98 = 1,078.18 : x
2. Step 2: Convert to fraction form
   2,637.34/3,955.98 = 1,078.18/x
3. Step 3: Cross multiply
   2,637.34x = 3,955.98 × 1,078.18
4. Step 4: Simplify right side
   2,637.34x = 4,265,258.52
5. Step 5: Solve for x
   x = 4,265,258.52/2,637.34
6. Step 6: Final answer
   x = 1,617.26