Finding the Fourth Proportional to 1,114.40, 1,661.75 and 1,104.50

Step by Step Solution

1. Step 1: Write the proportion equation
   1,114.40 : 1,661.75 = 1,104.50 : x
2. Step 2: Convert to fraction form
   1,114.40/1,661.75 = 1,104.50/x
3. Step 3: Cross multiply
   1,114.40x = 1,661.75 × 1,104.50
4. Step 4: Simplify right side
   1,114.40x = 1,835,402.88
5. Step 5: Solve for x
   x = 1,835,402.88/1,114.40
6. Step 6: Final answer
   x = 1,646.99