Finding the Fourth Proportional to 1,339.52, 1,849.64 and 842.96

Step by Step Solution

1. Step 1: Write the proportion equation
   1,339.52 : 1,849.64 = 842.96 : x
2. Step 2: Convert to fraction form
   1,339.52/1,849.64 = 842.96/x
3. Step 3: Cross multiply
   1,339.52x = 1,849.64 × 842.96
4. Step 4: Simplify right side
   1,339.52x = 1,559,172.53
5. Step 5: Solve for x
   x = 1,559,172.53/1,339.52
6. Step 6: Final answer
   x = 1,163.98