Finding the Fourth Proportional to 2,412.59, 3,618.61 and 1,637.57

Step by Step Solution

1. Step 1: Write the proportion equation
   2,412.59 : 3,618.61 = 1,637.57 : x
2. Step 2: Convert to fraction form
   2,412.59/3,618.61 = 1,637.57/x
3. Step 3: Cross multiply
   2,412.59x = 3,618.61 × 1,637.57
4. Step 4: Simplify right side
   2,412.59x = 5,925,727.18
5. Step 5: Solve for x
   x = 5,925,727.18/2,412.59
6. Step 6: Final answer
   x = 2,456.17