Finding the Fourth Proportional to 3,429.77, 5,114.54 and 3,398.59

Step by Step Solution

1. Step 1: Write the proportion equation
   3,429.77 : 5,114.54 = 3,398.59 : x
2. Step 2: Convert to fraction form
   3,429.77/5,114.54 = 3,398.59/x
3. Step 3: Cross multiply
   3,429.77x = 5,114.54 × 3,398.59
4. Step 4: Simplify right side
   3,429.77x = 17,382,224.50
5. Step 5: Solve for x
   x = 17,382,224.50/3,429.77
6. Step 6: Final answer
   x = 5,068.04