Finding the Fourth Proportional to 1,365.18, 1,883.62 and 776.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,365.18 : 1,883.62 = 776.04 : x
2. Step 2: Convert to fraction form
   1,365.18/1,883.62 = 776.04/x
3. Step 3: Cross multiply
   1,365.18x = 1,883.62 × 776.04
4. Step 4: Simplify right side
   1,365.18x = 1,461,751.17
5. Step 5: Solve for x
   x = 1,461,751.17/1,365.18
6. Step 6: Final answer
   x = 1,070.74