Finding the Fourth Proportional to 5,417.52, 8,126.22 and 2,128.32

Step by Step Solution

1. Step 1: Write the proportion equation
   5,417.52 : 8,126.22 = 2,128.32 : x
2. Step 2: Convert to fraction form
   5,417.52/8,126.22 = 2,128.32/x
3. Step 3: Cross multiply
   5,417.52x = 8,126.22 × 2,128.32
4. Step 4: Simplify right side
   5,417.52x = 17,295,196.55
5. Step 5: Solve for x
   x = 17,295,196.55/5,417.52
6. Step 6: Final answer
   x = 3,192.46