Finding the Fourth Proportional to 1,043.28, 1,572.76 and 972.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,043.28 : 1,572.76 = 972.82 : x
2. Step 2: Convert to fraction form
   1,043.28/1,572.76 = 972.82/x
3. Step 3: Cross multiply
   1,043.28x = 1,572.76 × 972.82
4. Step 4: Simplify right side
   1,043.28x = 1,530,007.52
5. Step 5: Solve for x
   x = 1,530,007.52/1,043.28
6. Step 6: Final answer
   x = 1,466.54