Finding the Fourth Proportional to 3,648.32, 5,476.80 and 3,633.92

Step by Step Solution

1. Step 1: Write the proportion equation
   3,648.32 : 5,476.80 = 3,633.92 : x
2. Step 2: Convert to fraction form
   3,648.32/5,476.80 = 3,633.92/x
3. Step 3: Cross multiply
   3,648.32x = 5,476.80 × 3,633.92
4. Step 4: Simplify right side
   3,648.32x = 19,902,253.06
5. Step 5: Solve for x
   x = 19,902,253.06/3,648.32
6. Step 6: Final answer
   x = 5,455.18