Finding the Fourth Proportional to 2,221.56, 3,329.37 and 1,052.10

Step by Step Solution

1. Step 1: Write the proportion equation
   2,221.56 : 3,329.37 = 1,052.10 : x
2. Step 2: Convert to fraction form
   2,221.56/3,329.37 = 1,052.10/x
3. Step 3: Cross multiply
   2,221.56x = 3,329.37 × 1,052.10
4. Step 4: Simplify right side
   2,221.56x = 3,502,830.18
5. Step 5: Solve for x
   x = 3,502,830.18/2,221.56
6. Step 6: Final answer
   x = 1,576.74