Finding the Fourth Proportional to 3,659.91, 5,050.69 and 1,981.34

Step by Step Solution

1. Step 1: Write the proportion equation
   3,659.91 : 5,050.69 = 1,981.34 : x
2. Step 2: Convert to fraction form
   3,659.91/5,050.69 = 1,981.34/x
3. Step 3: Cross multiply
   3,659.91x = 5,050.69 × 1,981.34
4. Step 4: Simplify right side
   3,659.91x = 10,007,108.65
5. Step 5: Solve for x
   x = 10,007,108.65/3,659.91
6. Step 6: Final answer
   x = 2,734.25