Finding the Fourth Proportional to 2,662.77, 3,991.47 and 1,100.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,662.77 : 3,991.47 = 1,100.62 : x
2. Step 2: Convert to fraction form
   2,662.77/3,991.47 = 1,100.62/x
3. Step 3: Cross multiply
   2,662.77x = 3,991.47 × 1,100.62
4. Step 4: Simplify right side
   2,662.77x = 4,393,095.67
5. Step 5: Solve for x
   x = 4,393,095.67/2,662.77
6. Step 6: Final answer
   x = 1,649.82