Finding the Fourth Proportional to 1,111.73, 1,666.98 and 882.09

Step by Step Solution

1. Step 1: Write the proportion equation
   1,111.73 : 1,666.98 = 882.09 : x
2. Step 2: Convert to fraction form
   1,111.73/1,666.98 = 882.09/x
3. Step 3: Cross multiply
   1,111.73x = 1,666.98 × 882.09
4. Step 4: Simplify right side
   1,111.73x = 1,470,426.39
5. Step 5: Solve for x
   x = 1,470,426.39/1,111.73
6. Step 6: Final answer
   x = 1,322.65