Finding the Fourth Proportional to 1,362.83, 1,880.77 and 803.47

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.83 : 1,880.77 = 803.47 : x
2. Step 2: Convert to fraction form
   1,362.83/1,880.77 = 803.47/x
3. Step 3: Cross multiply
   1,362.83x = 1,880.77 × 803.47
4. Step 4: Simplify right side
   1,362.83x = 1,511,140.59
5. Step 5: Solve for x
   x = 1,511,140.59/1,362.83
6. Step 6: Final answer
   x = 1,108.83