Finding the Fourth Proportional to 2,210.24, 3,050.34 and 1,215.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210.24 : 3,050.34 = 1,215.71 : x
2. Step 2: Convert to fraction form
   2,210.24/3,050.34 = 1,215.71/x
3. Step 3: Cross multiply
   2,210.24x = 3,050.34 × 1,215.71
4. Step 4: Simplify right side
   2,210.24x = 3,708,327.31
5. Step 5: Solve for x
   x = 3,708,327.31/2,210.24
6. Step 6: Final answer
   x = 1,677.80