Finding the Fourth Proportional to 1,360.32, 1,877.01 and 800.90

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.32 : 1,877.01 = 800.90 : x
2. Step 2: Convert to fraction form
   1,360.32/1,877.01 = 800.90/x
3. Step 3: Cross multiply
   1,360.32x = 1,877.01 × 800.90
4. Step 4: Simplify right side
   1,360.32x = 1,503,297.31
5. Step 5: Solve for x
   x = 1,503,297.31/1,360.32
6. Step 6: Final answer
   x = 1,105.11