Finding the Fourth Proportional to 1,404.03, 1,938.22 and 814.45

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.03 : 1,938.22 = 814.45 : x
2. Step 2: Convert to fraction form
   1,404.03/1,938.22 = 814.45/x
3. Step 3: Cross multiply
   1,404.03x = 1,938.22 × 814.45
4. Step 4: Simplify right side
   1,404.03x = 1,578,583.28
5. Step 5: Solve for x
   x = 1,578,583.28/1,404.03
6. Step 6: Final answer
   x = 1,124.32