Finding the Fourth Proportional to 1,432.42, 1,976.64 and 842.83

Step by Step Solution

1. Step 1: Write the proportion equation
   1,432.42 : 1,976.64 = 842.83 : x
2. Step 2: Convert to fraction form
   1,432.42/1,976.64 = 842.83/x
3. Step 3: Cross multiply
   1,432.42x = 1,976.64 × 842.83
4. Step 4: Simplify right side
   1,432.42x = 1,665,971.49
5. Step 5: Solve for x
   x = 1,665,971.49/1,432.42
6. Step 6: Final answer
   x = 1,163.05