Finding the Fourth Proportional to 1,359.87, 1,876.51 and 800.36

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.87 : 1,876.51 = 800.36 : x
2. Step 2: Convert to fraction form
   1,359.87/1,876.51 = 800.36/x
3. Step 3: Cross multiply
   1,359.87x = 1,876.51 × 800.36
4. Step 4: Simplify right side
   1,359.87x = 1,501,870.16
5. Step 5: Solve for x
   x = 1,501,870.16/1,359.87
6. Step 6: Final answer
   x = 1,104.43