Finding the Fourth Proportional to 2,648.88, 3,973.48 and 893.74

Step by Step Solution

1. Step 1: Write the proportion equation
   2,648.88 : 3,973.48 = 893.74 : x
2. Step 2: Convert to fraction form
   2,648.88/3,973.48 = 893.74/x
3. Step 3: Cross multiply
   2,648.88x = 3,973.48 × 893.74
4. Step 4: Simplify right side
   2,648.88x = 3,551,258.02
5. Step 5: Solve for x
   x = 3,551,258.02/2,648.88
6. Step 6: Final answer
   x = 1,340.66