Finding the Fourth Proportional to 1,356.73, 1,872.50 and 983.59

Step by Step Solution

1. Step 1: Write the proportion equation
   1,356.73 : 1,872.50 = 983.59 : x
2. Step 2: Convert to fraction form
   1,356.73/1,872.50 = 983.59/x
3. Step 3: Cross multiply
   1,356.73x = 1,872.50 × 983.59
4. Step 4: Simplify right side
   1,356.73x = 1,841,762.68
5. Step 5: Solve for x
   x = 1,841,762.68/1,356.73
6. Step 6: Final answer
   x = 1,357.50