Finding the Fourth Proportional to 2,460.42, 3,685.76 and 1,909.62

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.42 : 3,685.76 = 1,909.62 : x
2. Step 2: Convert to fraction form
   2,460.42/3,685.76 = 1,909.62/x
3. Step 3: Cross multiply
   2,460.42x = 3,685.76 × 1,909.62
4. Step 4: Simplify right side
   2,460.42x = 7,038,401.01
5. Step 5: Solve for x
   x = 7,038,401.01/2,460.42
6. Step 6: Final answer
   x = 2,860.65