Finding the Fourth Proportional to 3,609.78, 4,981.55 and 2,037.98

Step by Step Solution

1. Step 1: Write the proportion equation
   3,609.78 : 4,981.55 = 2,037.98 : x
2. Step 2: Convert to fraction form
   3,609.78/4,981.55 = 2,037.98/x
3. Step 3: Cross multiply
   3,609.78x = 4,981.55 × 2,037.98
4. Step 4: Simplify right side
   3,609.78x = 10,152,264.17
5. Step 5: Solve for x
   x = 10,152,264.17/3,609.78
6. Step 6: Final answer
   x = 2,812.43