Finding the Fourth Proportional to 1,404.41, 1,938.10 and 774.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,404.41 : 1,938.10 = 774.96 : x
2. Step 2: Convert to fraction form
   1,404.41/1,938.10 = 774.96/x
3. Step 3: Cross multiply
   1,404.41x = 1,938.10 × 774.96
4. Step 4: Simplify right side
   1,404.41x = 1,501,953.13
5. Step 5: Solve for x
   x = 1,501,953.13/1,404.41
6. Step 6: Final answer
   x = 1,069.46