Finding the Fourth Proportional to 1,282.28, 1,914.05 and 1,100.84

Step by Step Solution

1. Step 1: Write the proportion equation
   1,282.28 : 1,914.05 = 1,100.84 : x
2. Step 2: Convert to fraction form
   1,282.28/1,914.05 = 1,100.84/x
3. Step 3: Cross multiply
   1,282.28x = 1,914.05 × 1,100.84
4. Step 4: Simplify right side
   1,282.28x = 2,107,062.80
5. Step 5: Solve for x
   x = 2,107,062.80/1,282.28
6. Step 6: Final answer
   x = 1,643.22