Finding the Fourth Proportional to 2,385.65, 3,572.30 and 1,647.54

Step by Step Solution

1. Step 1: Write the proportion equation
   2,385.65 : 3,572.30 = 1,647.54 : x
2. Step 2: Convert to fraction form
   2,385.65/3,572.30 = 1,647.54/x
3. Step 3: Cross multiply
   2,385.65x = 3,572.30 × 1,647.54
4. Step 4: Simplify right side
   2,385.65x = 5,885,498.90
5. Step 5: Solve for x
   x = 5,885,498.90/2,385.65
6. Step 6: Final answer
   x = 2,467.05