Finding the Fourth Proportional to 1,365.53, 1,884.53 and 776.25

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.53 : 1,884.53 = 776.25 : x
2. Step 2: Convert to fraction form
   1,365.53/1,884.53 = 776.25/x
3. Step 3: Cross multiply
   1,365.53x = 1,884.53 × 776.25
4. Step 4: Simplify right side
   1,365.53x = 1,462,868.35
5. Step 5: Solve for x
   x = 1,462,868.35/1,365.53
6. Step 6: Final answer
   x = 1,071.29