Finding the Fourth Proportional to 1,921.69, 2,876.42 and 1,333.68

Step by Step Solution

1. Step 1: Write the proportion equation
   1,921.69 : 2,876.42 = 1,333.68 : x
2. Step 2: Convert to fraction form
   1,921.69/2,876.42 = 1,333.68/x
3. Step 3: Cross multiply
   1,921.69x = 2,876.42 × 1,333.68
4. Step 4: Simplify right side
   1,921.69x = 3,836,216.37
5. Step 5: Solve for x
   x = 3,836,216.37/1,921.69
6. Step 6: Final answer
   x = 1,996.27