Finding the Fourth Proportional to 2,460.78, 3,685.68 and 1,159.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,460.78 : 3,685.68 = 1,159.50 : x
2. Step 2: Convert to fraction form
   2,460.78/3,685.68 = 1,159.50/x
3. Step 3: Cross multiply
   2,460.78x = 3,685.68 × 1,159.50
4. Step 4: Simplify right side
   2,460.78x = 4,273,545.96
5. Step 5: Solve for x
   x = 4,273,545.96/2,460.78
6. Step 6: Final answer
   x = 1,736.66