Finding the Fourth Proportional to 1,442.12, 2,162.72 and 468

Step by Step Solution

1. Step 1: Write the proportion equation
   1,442.12 : 2,162.72 = 468 : x
2. Step 2: Convert to fraction form
   1,442.12/2,162.72 = 468/x
3. Step 3: Cross multiply
   1,442.12x = 2,162.72 × 468
4. Step 4: Simplify right side
   1,442.12x = 1,012,152.96
5. Step 5: Solve for x
   x = 1,012,152.96/1,442.12
6. Step 6: Final answer
   x = 701.85