Finding the Fourth Proportional to 2,270.84, 3,405.72 and 1,100.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,270.84 : 3,405.72 = 1,100.12 : x
2. Step 2: Convert to fraction form
   2,270.84/3,405.72 = 1,100.12/x
3. Step 3: Cross multiply
   2,270.84x = 3,405.72 × 1,100.12
4. Step 4: Simplify right side
   2,270.84x = 3,746,700.69
5. Step 5: Solve for x
   x = 3,746,700.69/2,270.84
6. Step 6: Final answer
   x = 1,649.92