Finding the Fourth Proportional to 3,647.65, 5,032.59 and 2,156.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,647.65 : 5,032.59 = 2,156.07 : x
2. Step 2: Convert to fraction form
   3,647.65/5,032.59 = 2,156.07/x
3. Step 3: Cross multiply
   3,647.65x = 5,032.59 × 2,156.07
4. Step 4: Simplify right side
   3,647.65x = 10,850,616.32
5. Step 5: Solve for x
   x = 10,850,616.32/3,647.65
6. Step 6: Final answer
   x = 2,974.69