Finding the Fourth Proportional to 1,806.37, 2,494.83 and 1,215.88

Step by Step Solution

1. Step 1: Write the proportion equation
   1,806.37 : 2,494.83 = 1,215.88 : x
2. Step 2: Convert to fraction form
   1,806.37/2,494.83 = 1,215.88/x
3. Step 3: Cross multiply
   1,806.37x = 2,494.83 × 1,215.88
4. Step 4: Simplify right side
   1,806.37x = 3,033,401.43
5. Step 5: Solve for x
   x = 3,033,401.43/1,806.37
6. Step 6: Final answer
   x = 1,679.28