Finding the Fourth Proportional to 1,360.60, 1,877.48 and 800.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.60 : 1,877.48 = 800.79 : x
2. Step 2: Convert to fraction form
   1,360.60/1,877.48 = 800.79/x
3. Step 3: Cross multiply
   1,360.60x = 1,877.48 × 800.79
4. Step 4: Simplify right side
   1,360.60x = 1,503,459.17
5. Step 5: Solve for x
   x = 1,503,459.17/1,360.60
6. Step 6: Final answer
   x = 1,105.00