Finding the Fourth Proportional to 3,554.28, 5,333.45 and 1,910.79

Step by Step Solution

1. Step 1: Write the proportion equation
   3,554.28 : 5,333.45 = 1,910.79 : x
2. Step 2: Convert to fraction form
   3,554.28/5,333.45 = 1,910.79/x
3. Step 3: Cross multiply
   3,554.28x = 5,333.45 × 1,910.79
4. Step 4: Simplify right side
   3,554.28x = 10,191,093.37
5. Step 5: Solve for x
   x = 10,191,093.37/3,554.28
6. Step 6: Final answer
   x = 2,867.27