Finding the Fourth Proportional to 2,215.76, 3,322.81 and 734.71

Step by Step Solution

1. Step 1: Write the proportion equation
   2,215.76 : 3,322.81 = 734.71 : x
2. Step 2: Convert to fraction form
   2,215.76/3,322.81 = 734.71/x
3. Step 3: Cross multiply
   2,215.76x = 3,322.81 × 734.71
4. Step 4: Simplify right side
   2,215.76x = 2,441,303.57
5. Step 5: Solve for x
   x = 2,441,303.57/2,215.76
6. Step 6: Final answer
   x = 1,101.79