Finding the Fourth Proportional to 1,647.29, 2,472.69 and 1,472.87

Step by Step Solution

1. Step 1: Write the proportion equation
   1,647.29 : 2,472.69 = 1,472.87 : x
2. Step 2: Convert to fraction form
   1,647.29/2,472.69 = 1,472.87/x
3. Step 3: Cross multiply
   1,647.29x = 2,472.69 × 1,472.87
4. Step 4: Simplify right side
   1,647.29x = 3,641,938.56
5. Step 5: Solve for x
   x = 3,641,938.56/1,647.29
6. Step 6: Final answer
   x = 2,210.87