Finding the Fourth Proportional to 3,538.02, 5,307.73 and 1,072.72

Step by Step Solution

1. Step 1: Write the proportion equation
   3,538.02 : 5,307.73 = 1,072.72 : x
2. Step 2: Convert to fraction form
   3,538.02/5,307.73 = 1,072.72/x
3. Step 3: Cross multiply
   3,538.02x = 5,307.73 × 1,072.72
4. Step 4: Simplify right side
   3,538.02x = 5,693,708.13
5. Step 5: Solve for x
   x = 5,693,708.13/3,538.02
6. Step 6: Final answer
   x = 1,609.29