Finding the Fourth Proportional to 2,477.05, 3,419.22 and 1,690.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,477.05 : 3,419.22 = 1,690.54 : x
2. Step 2: Convert to fraction form
   2,477.05/3,419.22 = 1,690.54/x
3. Step 3: Cross multiply
   2,477.05x = 3,419.22 × 1,690.54
4. Step 4: Simplify right side
   2,477.05x = 5,780,328.18
5. Step 5: Solve for x
   x = 5,780,328.18/2,477.05
6. Step 6: Final answer
   x = 2,333.55