Finding the Fourth Proportional to 1,542.40, 2,309.89 and 882.27

Step by Step Solution

1. Step 1: Write the proportion equation
   1,542.40 : 2,309.89 = 882.27 : x
2. Step 2: Convert to fraction form
   1,542.40/2,309.89 = 882.27/x
3. Step 3: Cross multiply
   1,542.40x = 2,309.89 × 882.27
4. Step 4: Simplify right side
   1,542.40x = 2,037,947.33
5. Step 5: Solve for x
   x = 2,037,947.33/1,542.40
6. Step 6: Final answer
   x = 1,321.29