Finding the Fourth Proportional to 2,146.86, 3,215.88 and 1,052.28

Step by Step Solution

1. Step 1: Write the proportion equation
   2,146.86 : 3,215.88 = 1,052.28 : x
2. Step 2: Convert to fraction form
   2,146.86/3,215.88 = 1,052.28/x
3. Step 3: Cross multiply
   2,146.86x = 3,215.88 × 1,052.28
4. Step 4: Simplify right side
   2,146.86x = 3,384,006.21
5. Step 5: Solve for x
   x = 3,384,006.21/2,146.86
6. Step 6: Final answer
   x = 1,576.26