Finding the Fourth Proportional to 1,440.04, 1,984.89 and 1,107.94

Step by Step Solution

1. Step 1: Write the proportion equation
   1,440.04 : 1,984.89 = 1,107.94 : x
2. Step 2: Convert to fraction form
   1,440.04/1,984.89 = 1,107.94/x
3. Step 3: Cross multiply
   1,440.04x = 1,984.89 × 1,107.94
4. Step 4: Simplify right side
   1,440.04x = 2,199,139.03
5. Step 5: Solve for x
   x = 2,199,139.03/1,440.04
6. Step 6: Final answer
   x = 1,527.14