Finding the Fourth Proportional to 3,436.04, 5,152.34 and 1,680.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,436.04 : 5,152.34 = 1,680.30 : x
2. Step 2: Convert to fraction form
   3,436.04/5,152.34 = 1,680.30/x
3. Step 3: Cross multiply
   3,436.04x = 5,152.34 × 1,680.30
4. Step 4: Simplify right side
   3,436.04x = 8,657,481.10
5. Step 5: Solve for x
   x = 8,657,481.10/3,436.04
6. Step 6: Final answer
   x = 2,519.61