Finding the Fourth Proportional to 1,297.35, 1,790.42 and 983.56

Step by Step Solution

1. Step 1: Write the proportion equation
   1,297.35 : 1,790.42 = 983.56 : x
2. Step 2: Convert to fraction form
   1,297.35/1,790.42 = 983.56/x
3. Step 3: Cross multiply
   1,297.35x = 1,790.42 × 983.56
4. Step 4: Simplify right side
   1,297.35x = 1,760,985.50
5. Step 5: Solve for x
   x = 1,760,985.50/1,297.35
6. Step 6: Final answer
   x = 1,357.37