Finding the Fourth Proportional to 1,362.67, 1,880.73 and 803.10

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.67 : 1,880.73 = 803.10 : x
2. Step 2: Convert to fraction form
   1,362.67/1,880.73 = 803.10/x
3. Step 3: Cross multiply
   1,362.67x = 1,880.73 × 803.10
4. Step 4: Simplify right side
   1,362.67x = 1,510,414.72
5. Step 5: Solve for x
   x = 1,510,414.72/1,362.67
6. Step 6: Final answer
   x = 1,108.43