Finding the Fourth Proportional to 1,360.12, 1,876.82 and 800.77

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.12 : 1,876.82 = 800.77 : x
2. Step 2: Convert to fraction form
   1,360.12/1,876.82 = 800.77/x
3. Step 3: Cross multiply
   1,360.12x = 1,876.82 × 800.77
4. Step 4: Simplify right side
   1,360.12x = 1,502,896.46
5. Step 5: Solve for x
   x = 1,502,896.46/1,360.12
6. Step 6: Final answer
   x = 1,104.97