Finding the Fourth Proportional to 1,131.37, 1,560.81 and 800.08

Step by Step Solution

1. Step 1: Write the proportion equation
   1,131.37 : 1,560.81 = 800.08 : x
2. Step 2: Convert to fraction form
   1,131.37/1,560.81 = 800.08/x
3. Step 3: Cross multiply
   1,131.37x = 1,560.81 × 800.08
4. Step 4: Simplify right side
   1,131.37x = 1,248,772.86
5. Step 5: Solve for x
   x = 1,248,772.86/1,131.37
6. Step 6: Final answer
   x = 1,103.77