Finding the Fourth Proportional to 1,362.52, 1,880.55 and 803.35

Step by Step Solution

1. Step 1: Write the proportion equation
   1,362.52 : 1,880.55 = 803.35 : x
2. Step 2: Convert to fraction form
   1,362.52/1,880.55 = 803.35/x
3. Step 3: Cross multiply
   1,362.52x = 1,880.55 × 803.35
4. Step 4: Simplify right side
   1,362.52x = 1,510,739.84
5. Step 5: Solve for x
   x = 1,510,739.84/1,362.52
6. Step 6: Final answer
   x = 1,108.78