Finding the Fourth Proportional to 1,472.72, 2,205.84 and 983.48

Step by Step Solution

1. Step 1: Write the proportion equation
   1,472.72 : 2,205.84 = 983.48 : x
2. Step 2: Convert to fraction form
   1,472.72/2,205.84 = 983.48/x
3. Step 3: Cross multiply
   1,472.72x = 2,205.84 × 983.48
4. Step 4: Simplify right side
   1,472.72x = 2,169,399.52
5. Step 5: Solve for x
   x = 2,169,399.52/1,472.72
6. Step 6: Final answer
   x = 1,473.06