Finding the Fourth Proportional to 1,430.25, 1,974.56 and 1,080.33

Step by Step Solution

1. Step 1: Write the proportion equation
   1,430.25 : 1,974.56 = 1,080.33 : x
2. Step 2: Convert to fraction form
   1,430.25/1,974.56 = 1,080.33/x
3. Step 3: Cross multiply
   1,430.25x = 1,974.56 × 1,080.33
4. Step 4: Simplify right side
   1,430.25x = 2,133,171.00
5. Step 5: Solve for x
   x = 2,133,171.00/1,430.25
6. Step 6: Final answer
   x = 1,491.47