Finding the Fourth Proportional to 2,407.72, 3,322.46 and 1,412.20

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.72 : 3,322.46 = 1,412.20 : x
2. Step 2: Convert to fraction form
   2,407.72/3,322.46 = 1,412.20/x
3. Step 3: Cross multiply
   2,407.72x = 3,322.46 × 1,412.20
4. Step 4: Simplify right side
   2,407.72x = 4,691,978.01
5. Step 5: Solve for x
   x = 4,691,978.01/2,407.72
6. Step 6: Final answer
   x = 1,948.72