Finding the Fourth Proportional to 1,360.89, 1,878.03 and 836.82

Step by Step Solution

1. Step 1: Write the proportion equation
   1,360.89 : 1,878.03 = 836.82 : x
2. Step 2: Convert to fraction form
   1,360.89/1,878.03 = 836.82/x
3. Step 3: Cross multiply
   1,360.89x = 1,878.03 × 836.82
4. Step 4: Simplify right side
   1,360.89x = 1,571,573.06
5. Step 5: Solve for x
   x = 1,571,573.06/1,360.89
6. Step 6: Final answer
   x = 1,154.81