Finding the Fourth Proportional to 1,345.24, 1,856.82 and 822.22

Step by Step Solution

1. Step 1: Write the proportion equation
   1,345.24 : 1,856.82 = 822.22 : x
2. Step 2: Convert to fraction form
   1,345.24/1,856.82 = 822.22/x
3. Step 3: Cross multiply
   1,345.24x = 1,856.82 × 822.22
4. Step 4: Simplify right side
   1,345.24x = 1,526,714.54
5. Step 5: Solve for x
   x = 1,526,714.54/1,345.24
6. Step 6: Final answer
   x = 1,134.90