Finding the Fourth Proportional to 1,360.47, 1,876.98 and 800.76

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.47 : 1,876.98 = 800.76 : x
2. Step 2: Convert to fraction form
   1,360.47/1,876.98 = 800.76/x
3. Step 3: Cross multiply
   1,360.47x = 1,876.98 × 800.76
4. Step 4: Simplify right side
   1,360.47x = 1,503,010.50
5. Step 5: Solve for x
   x = 1,503,010.50/1,360.47
6. Step 6: Final answer
   x = 1,104.77