Finding the Fourth Proportional to 1,362.83, 2,042.30 and 776.63

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.83 : 2,042.30 = 776.63 : x
2. Step 2: Convert to fraction form
   1,362.83/2,042.30 = 776.63/x
3. Step 3: Cross multiply
   1,362.83x = 2,042.30 × 776.63
4. Step 4: Simplify right side
   1,362.83x = 1,586,097.35
5. Step 5: Solve for x
   x = 1,586,097.35/1,362.83
6. Step 6: Final answer
   x = 1,163.82