Finding the Fourth Proportional to 2,210.32, 3,050.21 and 1,215.69

Step by Step Solution

1. Step 1: Write the proportion equation
   2,210.32 : 3,050.21 = 1,215.69 : x
2. Step 2: Convert to fraction form
   2,210.32/3,050.21 = 1,215.69/x
3. Step 3: Cross multiply
   2,210.32x = 3,050.21 × 1,215.69
4. Step 4: Simplify right side
   2,210.32x = 3,708,111.72
5. Step 5: Solve for x
   x = 3,708,111.72/2,210.32
6. Step 6: Final answer
   x = 1,677.63