Finding the Fourth Proportional to 3,659.67, 5,050.31 and 1,981.06

Step by Step Solution

1. Step 1: Write the proportion equation
   3,659.67 : 5,050.31 = 1,981.06 : x
2. Step 2: Convert to fraction form
   3,659.67/5,050.31 = 1,981.06/x
3. Step 3: Cross multiply
   3,659.67x = 5,050.31 × 1,981.06
4. Step 4: Simplify right side
   3,659.67x = 10,004,967.13
5. Step 5: Solve for x
   x = 10,004,967.13/3,659.67
6. Step 6: Final answer
   x = 2,733.84