Finding the Fourth Proportional to 1,489.83, 2,233.15 and 942.17

Step by Step Solution

1. Step 1: Write the proportion equation
   1,489.83 : 2,233.15 = 942.17 : x
2. Step 2: Convert to fraction form
   1,489.83/2,233.15 = 942.17/x
3. Step 3: Cross multiply
   1,489.83x = 2,233.15 × 942.17
4. Step 4: Simplify right side
   1,489.83x = 2,104,006.94
5. Step 5: Solve for x
   x = 2,104,006.94/1,489.83
6. Step 6: Final answer
   x = 1,412.25