Finding the Fourth Proportional to 2,647.53, 3,654.07 and 1,528.31

Step by Step Solution

1. Step 1: Write the proportion equation
   2,647.53 : 3,654.07 = 1,528.31 : x
2. Step 2: Convert to fraction form
   2,647.53/3,654.07 = 1,528.31/x
3. Step 3: Cross multiply
   2,647.53x = 3,654.07 × 1,528.31
4. Step 4: Simplify right side
   2,647.53x = 5,584,557.04
5. Step 5: Solve for x
   x = 5,584,557.04/2,647.53
6. Step 6: Final answer
   x = 2,109.35