Finding the Fourth Proportional to 1,404.82, 1,938.42 and 985.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.82 : 1,938.42 = 985.04 : x
2. Step 2: Convert to fraction form
   1,404.82/1,938.42 = 985.04/x
3. Step 3: Cross multiply
   1,404.82x = 1,938.42 × 985.04
4. Step 4: Simplify right side
   1,404.82x = 1,909,421.24
5. Step 5: Solve for x
   x = 1,909,421.24/1,404.82
6. Step 6: Final answer
   x = 1,359.19