Finding the Fourth Proportional to 1,365.93, 1,885.07 and 776.52

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.93 : 1,885.07 = 776.52 : x
2. Step 2: Convert to fraction form
   1,365.93/1,885.07 = 776.52/x
3. Step 3: Cross multiply
   1,365.93x = 1,885.07 × 776.52
4. Step 4: Simplify right side
   1,365.93x = 1,463,796.50
5. Step 5: Solve for x
   x = 1,463,796.50/1,365.93
6. Step 6: Final answer
   x = 1,071.65