Finding the Fourth Proportional to 1,359.48, 1,876.45 and 800.13

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.48 : 1,876.45 = 800.13 : x
2. Step 2: Convert to fraction form
   1,359.48/1,876.45 = 800.13/x
3. Step 3: Cross multiply
   1,359.48x = 1,876.45 × 800.13
4. Step 4: Simplify right side
   1,359.48x = 1,501,401.94
5. Step 5: Solve for x
   x = 1,501,401.94/1,359.48
6. Step 6: Final answer
   x = 1,104.39