Finding the Fourth Proportional to 1,401.38, 1,934.69 and 842.00

Step by Step Solution

1. Step 1: Write the proportion equation
   1,401.38 : 1,934.69 = 842.00 : x
2. Step 2: Convert to fraction form
   1,401.38/1,934.69 = 842.00/x
3. Step 3: Cross multiply
   1,401.38x = 1,934.69 × 842.00
4. Step 4: Simplify right side
   1,401.38x = 1,628,999.83
5. Step 5: Solve for x
   x = 1,628,999.83/1,401.38
6. Step 6: Final answer
   x = 1,162.42