Finding the Fourth Proportional to 1,422.93, 1,964.41 and 983.19

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.93 : 1,964.41 = 983.19 : x
2. Step 2: Convert to fraction form
   1,422.93/1,964.41 = 983.19/x
3. Step 3: Cross multiply
   1,422.93x = 1,964.41 × 983.19
4. Step 4: Simplify right side
   1,422.93x = 1,931,388.27
5. Step 5: Solve for x
   x = 1,931,388.27/1,422.93
6. Step 6: Final answer
   x = 1,357.34