Finding the Fourth Proportional to 2,152.95, 3,225.31 and 1,456.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,152.95 : 3,225.31 = 1,456.20 : x
2. Step 2: Convert to fraction form
   2,152.95/3,225.31 = 1,456.20/x
3. Step 3: Cross multiply
   2,152.95x = 3,225.31 × 1,456.20
4. Step 4: Simplify right side
   2,152.95x = 4,696,673.01
5. Step 5: Solve for x
   x = 4,696,673.01/2,152.95
6. Step 6: Final answer
   x = 2,181.51