Finding the Fourth Proportional to 2,662.76, 3,992.88 and 1,201.16

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.76 : 3,992.88 = 1,201.16 : x
2. Step 2: Convert to fraction form
   2,662.76/3,992.88 = 1,201.16/x
3. Step 3: Cross multiply
   2,662.76x = 3,992.88 × 1,201.16
4. Step 4: Simplify right side
   2,662.76x = 4,796,087.74
5. Step 5: Solve for x
   x = 4,796,087.74/2,662.76
6. Step 6: Final answer
   x = 1,801.17