Finding the Fourth Proportional to 1,359.47, 1,875.60 and 799.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,359.47 : 1,875.60 = 799.76 : x
2. Step 2: Convert to fraction form
   1,359.47/1,875.60 = 799.76/x
3. Step 3: Cross multiply
   1,359.47x = 1,875.60 × 799.76
4. Step 4: Simplify right side
   1,359.47x = 1,500,020.48
5. Step 5: Solve for x
   x = 1,500,020.48/1,359.47
6. Step 6: Final answer
   x = 1,103.39