Finding the Fourth Proportional to 1,422.16, 1,957.74 and 1,233.04

Step by Step Solution

1. Step 1: Write the proportion equation
   1,422.16 : 1,957.74 = 1,233.04 : x
2. Step 2: Convert to fraction form
   1,422.16/1,957.74 = 1,233.04/x
3. Step 3: Cross multiply
   1,422.16x = 1,957.74 × 1,233.04
4. Step 4: Simplify right side
   1,422.16x = 2,413,971.73
5. Step 5: Solve for x
   x = 2,413,971.73/1,422.16
6. Step 6: Final answer
   x = 1,697.40