Finding the Fourth Proportional to 3,200.32, 4,801.86 and 1,121.82

Step by Step Solution

1. Step 1: Write the proportion equation
   3,200.32 : 4,801.86 = 1,121.82 : x
2. Step 2: Convert to fraction form
   3,200.32/4,801.86 = 1,121.82/x
3. Step 3: Cross multiply
   3,200.32x = 4,801.86 × 1,121.82
4. Step 4: Simplify right side
   3,200.32x = 5,386,822.59
5. Step 5: Solve for x
   x = 5,386,822.59/3,200.32
6. Step 6: Final answer
   x = 1,683.21