Finding the Fourth Proportional to 1,359.49, 1,875.66 and 800.16

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.49 : 1,875.66 = 800.16 : x
2. Step 2: Convert to fraction form
   1,359.49/1,875.66 = 800.16/x
3. Step 3: Cross multiply
   1,359.49x = 1,875.66 × 800.16
4. Step 4: Simplify right side
   1,359.49x = 1,500,828.11
5. Step 5: Solve for x
   x = 1,500,828.11/1,359.49
6. Step 6: Final answer
   x = 1,103.96