Finding the Fourth Proportional to 2,631.49, 3,944.19 and 1,070.47

Step by Step Solution

1. Step 1: Write the proportion equation
   2,631.49 : 3,944.19 = 1,070.47 : x
2. Step 2: Convert to fraction form
   2,631.49/3,944.19 = 1,070.47/x
3. Step 3: Cross multiply
   2,631.49x = 3,944.19 × 1,070.47
4. Step 4: Simplify right side
   2,631.49x = 4,222,123.83
5. Step 5: Solve for x
   x = 4,222,123.83/2,631.49
6. Step 6: Final answer
   x = 1,604.46