Finding the Fourth Proportional to 1,404.36, 1,938.12 and 775.01

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.36 : 1,938.12 = 775.01 : x
2. Step 2: Convert to fraction form
   1,404.36/1,938.12 = 775.01/x
3. Step 3: Cross multiply
   1,404.36x = 1,938.12 × 775.01
4. Step 4: Simplify right side
   1,404.36x = 1,502,062.38
5. Step 5: Solve for x
   x = 1,502,062.38/1,404.36
6. Step 6: Final answer
   x = 1,069.57