Finding the Fourth Proportional to 2,407.42, 3,322.20 and 1,345.21

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.42 : 3,322.20 = 1,345.21 : x
2. Step 2: Convert to fraction form
   2,407.42/3,322.20 = 1,345.21/x
3. Step 3: Cross multiply
   2,407.42x = 3,322.20 × 1,345.21
4. Step 4: Simplify right side
   2,407.42x = 4,469,048.36
5. Step 5: Solve for x
   x = 4,469,048.36/2,407.42
6. Step 6: Final answer
   x = 1,856.37