Finding the Fourth Proportional to 2,111.35, 2,912.88 and 1,354.27

Step by Step Solution

1. Step 1: Write the proportion equation
   2,111.35 : 2,912.88 = 1,354.27 : x
2. Step 2: Convert to fraction form
   2,111.35/2,912.88 = 1,354.27/x
3. Step 3: Cross multiply
   2,111.35x = 2,912.88 × 1,354.27
4. Step 4: Simplify right side
   2,111.35x = 3,944,826.00
5. Step 5: Solve for x
   x = 3,944,826.00/2,111.35
6. Step 6: Final answer
   x = 1,868.39