Finding the Fourth Proportional to 1,373.82, 1,895.74 and 842.79

Step by Step Solution

1. Step 1: Write the proportion equation
   1,373.82 : 1,895.74 = 842.79 : x
2. Step 2: Convert to fraction form
   1,373.82/1,895.74 = 842.79/x
3. Step 3: Cross multiply
   1,373.82x = 1,895.74 × 842.79
4. Step 4: Simplify right side
   1,373.82x = 1,597,716.61
5. Step 5: Solve for x
   x = 1,597,716.61/1,373.82
6. Step 6: Final answer
   x = 1,162.97