Finding the Fourth Proportional to 1,404.29, 1,938.03 and 845.03

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.29 : 1,938.03 = 845.03 : x
2. Step 2: Convert to fraction form
   1,404.29/1,938.03 = 845.03/x
3. Step 3: Cross multiply
   1,404.29x = 1,938.03 × 845.03
4. Step 4: Simplify right side
   1,404.29x = 1,637,693.49
5. Step 5: Solve for x
   x = 1,637,693.49/1,404.29
6. Step 6: Final answer
   x = 1,166.21