Finding the Fourth Proportional to 1,402.53, 1,935.05 and 842.73

Step by Step Solution

1. Step 1: Write the proportion equation
   1,402.53 : 1,935.05 = 842.73 : x
2. Step 2: Convert to fraction form
   1,402.53/1,935.05 = 842.73/x
3. Step 3: Cross multiply
   1,402.53x = 1,935.05 × 842.73
4. Step 4: Simplify right side
   1,402.53x = 1,630,724.69
5. Step 5: Solve for x
   x = 1,630,724.69/1,402.53
6. Step 6: Final answer
   x = 1,162.70