Finding the Fourth Proportional to 3,417.05, 5,128.61 and 1,774.73

Step by Step Solution

1. Step 1: Write the proportion equation
   3,417.05 : 5,128.61 = 1,774.73 : x
2. Step 2: Convert to fraction form
   3,417.05/5,128.61 = 1,774.73/x
3. Step 3: Cross multiply
   3,417.05x = 5,128.61 × 1,774.73
4. Step 4: Simplify right side
   3,417.05x = 9,101,863.51
5. Step 5: Solve for x
   x = 9,101,863.51/3,417.05
6. Step 6: Final answer
   x = 2,663.67