Finding the Fourth Proportional to 1,739.42, 2,400.31 and 983.18

Step by Step Solution

1. Step 1: Write the proportion equation
   1,739.42 : 2,400.31 = 983.18 : x
2. Step 2: Convert to fraction form
   1,739.42/2,400.31 = 983.18/x
3. Step 3: Cross multiply
   1,739.42x = 2,400.31 × 983.18
4. Step 4: Simplify right side
   1,739.42x = 2,359,934.33
5. Step 5: Solve for x
   x = 2,359,934.33/1,739.42
6. Step 6: Final answer
   x = 1,356.74