Finding the Fourth Proportional to 1,573.27, 2,171.51 and 983.69

Step by Step Solution

1. Step 1: Write the proportion equation
   1,573.27 : 2,171.51 = 983.69 : x
2. Step 2: Convert to fraction form
   1,573.27/2,171.51 = 983.69/x
3. Step 3: Cross multiply
   1,573.27x = 2,171.51 × 983.69
4. Step 4: Simplify right side
   1,573.27x = 2,136,100.94
5. Step 5: Solve for x
   x = 2,136,100.94/1,573.27
6. Step 6: Final answer
   x = 1,357.74