Finding the Fourth Proportional to 1,408.55, 1,942.85 and 848.43

Step by Step Solution

1. Step 1: Write the proportion equation
   1,408.55 : 1,942.85 = 848.43 : x
2. Step 2: Convert to fraction form
   1,408.55/1,942.85 = 848.43/x
3. Step 3: Cross multiply
   1,408.55x = 1,942.85 × 848.43
4. Step 4: Simplify right side
   1,408.55x = 1,648,374.35
5. Step 5: Solve for x
   x = 1,648,374.35/1,408.55
6. Step 6: Final answer
   x = 1,170.27