Finding the Fourth Proportional to 1,359.83, 1,876.56 and 800.30

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.83 : 1,876.56 = 800.30 : x
2. Step 2: Convert to fraction form
   1,359.83/1,876.56 = 800.30/x
3. Step 3: Cross multiply
   1,359.83x = 1,876.56 × 800.30
4. Step 4: Simplify right side
   1,359.83x = 1,501,801.59
5. Step 5: Solve for x
   x = 1,501,801.59/1,359.83
6. Step 6: Final answer
   x = 1,104.40