Finding the Fourth Proportional to 2,133.31, 2,942.65 and 1,248.52

Step by Step Solution

1. Step 1: Write the proportion equation
   2,133.31 : 2,942.65 = 1,248.52 : x
2. Step 2: Convert to fraction form
   2,133.31/2,942.65 = 1,248.52/x
3. Step 3: Cross multiply
   2,133.31x = 2,942.65 × 1,248.52
4. Step 4: Simplify right side
   2,133.31x = 3,673,957.38
5. Step 5: Solve for x
   x = 3,673,957.38/2,133.31
6. Step 6: Final answer
   x = 1,722.19