Finding the Fourth Proportional to 2,110.05, 3,164.37 and 876.78

Step by Step Solution

1. Step 1: Write the proportion equation
   2,110.05 : 3,164.37 = 876.78 : x
2. Step 2: Convert to fraction form
   2,110.05/3,164.37 = 876.78/x
3. Step 3: Cross multiply
   2,110.05x = 3,164.37 × 876.78
4. Step 4: Simplify right side
   2,110.05x = 2,774,456.33
5. Step 5: Solve for x
   x = 2,774,456.33/2,110.05
6. Step 6: Final answer
   x = 1,314.88