Finding the Fourth Proportional to 2,618.14, 3,928.56 and 1,447.93

Step by Step Solution

1. Step 1: Write the proportion equation
   2,618.14 : 3,928.56 = 1,447.93 : x
2. Step 2: Convert to fraction form
   2,618.14/3,928.56 = 1,447.93/x
3. Step 3: Cross multiply
   2,618.14x = 3,928.56 × 1,447.93
4. Step 4: Simplify right side
   2,618.14x = 5,688,279.88
5. Step 5: Solve for x
   x = 5,688,279.88/2,618.14
6. Step 6: Final answer
   x = 2,172.64