Finding the Fourth Proportional to 2,407.89, 3,590.40 and 2,403.30

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.89 : 3,590.40 = 2,403.30 : x
2. Step 2: Convert to fraction form
   2,407.89/3,590.40 = 2,403.30/x
3. Step 3: Cross multiply
   2,407.89x = 3,590.40 × 2,403.30
4. Step 4: Simplify right side
   2,407.89x = 8,628,808.32
5. Step 5: Solve for x
   x = 8,628,808.32/2,407.89
6. Step 6: Final answer
   x = 3,583.56