Finding the Fourth Proportional to 2,407.31, 3,321.15 and 1,412.22

Step by Step Solution

1. Step 1: Write the proportion equation
   2,407.31 : 3,321.15 = 1,412.22 : x
2. Step 2: Convert to fraction form
   2,407.31/3,321.15 = 1,412.22/x
3. Step 3: Cross multiply
   2,407.31x = 3,321.15 × 1,412.22
4. Step 4: Simplify right side
   2,407.31x = 4,690,194.45
5. Step 5: Solve for x
   x = 4,690,194.45/2,407.31
6. Step 6: Final answer
   x = 1,948.32