Finding the Fourth Proportional to 1,150.07, 1,588.22 and 983.31

Step by Step Solution

1. Step 1: Write the proportion equation
   1,150.07 : 1,588.22 = 983.31 : x
2. Step 2: Convert to fraction form
   1,150.07/1,588.22 = 983.31/x
3. Step 3: Cross multiply
   1,150.07x = 1,588.22 × 983.31
4. Step 4: Simplify right side
   1,150.07x = 1,561,707.69
5. Step 5: Solve for x
   x = 1,561,707.69/1,150.07
6. Step 6: Final answer
   x = 1,357.93