Finding the Fourth Proportional to 3,345.10, 4,612.98 and 2,208.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,345.10 : 4,612.98 = 2,208.72 : x
2. Step 2: Convert to fraction form
   3,345.10/4,612.98 = 2,208.72/x
3. Step 3: Cross multiply
   3,345.10x = 4,612.98 × 2,208.72
4. Step 4: Simplify right side
   3,345.10x = 10,188,781.19
5. Step 5: Solve for x
   x = 10,188,781.19/3,345.10
6. Step 6: Final answer
   x = 3,045.88