Finding the Fourth Proportional to 2,427.03, 3,640.78 and 965.86

Step by Step Solution

1. Step 1: Write the proportion equation
   2,427.03 : 3,640.78 = 965.86 : x
2. Step 2: Convert to fraction form
   2,427.03/3,640.78 = 965.86/x
3. Step 3: Cross multiply
   2,427.03x = 3,640.78 × 965.86
4. Step 4: Simplify right side
   2,427.03x = 3,516,483.77
5. Step 5: Solve for x
   x = 3,516,483.77/2,427.03
6. Step 6: Final answer
   x = 1,448.88