Finding the Fourth Proportional to 3,981.65, 5,495.85 and 2,488.68

Step by Step Solution

1. Step 1: Write the proportion equation
   3,981.65 : 5,495.85 = 2,488.68 : x
2. Step 2: Convert to fraction form
   3,981.65/5,495.85 = 2,488.68/x
3. Step 3: Cross multiply
   3,981.65x = 5,495.85 × 2,488.68
4. Step 4: Simplify right side
   3,981.65x = 13,677,411.98
5. Step 5: Solve for x
   x = 13,677,411.98/3,981.65
6. Step 6: Final answer
   x = 3,435.12