Finding the Fourth Proportional to 2,175.56, 3,261.72 and 1,022.12

Step by Step Solution

1. Step 1: Write the proportion equation
   2,175.56 : 3,261.72 = 1,022.12 : x
2. Step 2: Convert to fraction form
   2,175.56/3,261.72 = 1,022.12/x
3. Step 3: Cross multiply
   2,175.56x = 3,261.72 × 1,022.12
4. Step 4: Simplify right side
   2,175.56x = 3,333,869.25
5. Step 5: Solve for x
   x = 3,333,869.25/2,175.56
6. Step 6: Final answer
   x = 1,532.42