Finding the Fourth Proportional to 3,344.69, 5,017.65 and 1,123.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,344.69 : 5,017.65 = 1,123.30 : x
2. Step 2: Convert to fraction form
   3,344.69/5,017.65 = 1,123.30/x
3. Step 3: Cross multiply
   3,344.69x = 5,017.65 × 1,123.30
4. Step 4: Simplify right side
   3,344.69x = 5,636,326.25
5. Step 5: Solve for x
   x = 5,636,326.25/3,344.69
6. Step 6: Final answer
   x = 1,685.16