Finding the Fourth Proportional to 2,354.81, 3,507.17 and 2,290.23

Step by Step Solution

1. Step 1: Write the proportion equation
   2,354.81 : 3,507.17 = 2,290.23 : x
2. Step 2: Convert to fraction form
   2,354.81/3,507.17 = 2,290.23/x
3. Step 3: Cross multiply
   2,354.81x = 3,507.17 × 2,290.23
4. Step 4: Simplify right side
   2,354.81x = 8,032,214.50
5. Step 5: Solve for x
   x = 8,032,214.50/2,354.81
6. Step 6: Final answer
   x = 3,410.99