Finding the Fourth Proportional to 3,116.34, 4,297.20 and 3,070.38

Step by Step Solution

1. Step 1: Write the proportion equation
   3,116.34 : 4,297.20 = 3,070.38 : x
2. Step 2: Convert to fraction form
   3,116.34/4,297.20 = 3,070.38/x
3. Step 3: Cross multiply
   3,116.34x = 4,297.20 × 3,070.38
4. Step 4: Simplify right side
   3,116.34x = 13,194,036.94
5. Step 5: Solve for x
   x = 13,194,036.94/3,116.34
6. Step 6: Final answer
   x = 4,233.82